CDW CDW Corporation

As filed with the Securities and Exchange Commission on August 2, 2023

Registration No. 333-            

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

CDW Corporation*

(Exact name of registrant as specified in its charter)

CDW LLC*

(Exact name of registrant as specified in its charter)

CDW Finance Corporation*

(Exact name of registrant as specified in its charter)

200 N. Milwaukee Avenue

Vernon Hills, Illinois 60061

(847) 465-6000

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Frederick J. Kulevich

Senior Vice President, General Counsel

and Corporate Secretary

CDW Corporation

200 N. Milwaukee Avenue

Vernon Hills, Illinois 60061

(847) 465-6000

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies of all communications, including communications sent to agent for service, should be sent to:

Robert A. Ryan

Sidley Austin LLP

1 South Dearborn Street

Chicago, Illinois 60603

(312) 853-7000

Approximate date of commencement of proposed sale to the public: From time to time on or after the effective date of this Registration Statement.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box.  ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box.  ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ☐

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box.  ☒

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box.  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.  ☐

Table of Additional Registrants

PROSPECTUS

CDW CORPORATION

Common Stock

Preferred Stock

Depositary Shares

Warrants

Subscription Rights

Debt Securities

Guarantees of Debt Securities

Share Purchase Contracts

Share Purchase Units

CDW LLC

CDW FINANCE CORPORATION

Debt Securities

Guarantees of Debt Securities

CDW Corporation, CDW LLC and CDW Finance Corporation may offer and sell, from time to time, in one or more offerings, any combination of securities we describe in this prospectus. This prospectus also covers guarantees, if any, of our obligations under any debt securities, which may be given by CDW Corporation and/or one or more of our subsidiaries specified in this prospectus or any prospectus supplement. In addition, any selling stockholders to be named in a prospectus supplement may offer and sell, from time to time, in one or more offerings, shares of our common stock. The securities may be offered and sold to or through one or more underwriters, dealers and agents, or directly to purchasers, on a delayed or continuous basis.

This prospectus describes some of the general terms that may apply to these securities and the general manner in which they may be offered. The specific terms of any securities to be offered, and the specific manner in which they may be offered, will be described in one or more supplements to this prospectus.

To the extent that any selling stockholder resells any securities, the selling stockholder may be required to provide you with the prospectus and a prospectus supplement identifying and containing specific information about the selling stockholder and the terms of the securities being offered.

Before investing, you should carefully read this prospectus and any related prospectus supplement.

CDW Corporation’s common stock is listed on the Nasdaq Global Select Market under the symbol “CDW.” If we decide to list or seek a quotation for any other securities, the prospectus supplement relating to those securities will disclose the exchange or market on which those securities will be listed or quoted.

Investing in our securities involves risks. You should refer to “Risk Factors” on page 2 of this prospectus and the risk factors included in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the Securities and Exchange Commission on February 24, 2023 (which is incorporated by reference herein) and our other periodic reports and other information that we file with the Securities and Exchange Commission incorporated by reference in this prospectus and the applicable prospectus supplement and carefully consider that information before buying our securities.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is August 2, 2023.

TABLE OF CONTENTS

ABOUT THIS PROSPECTUS

This prospectus is a part of a registration statement that we filed with the U.S. Securities and Exchange Commission (the “SEC”) utilizing a “shelf” registration process. Under this shelf registration process, we and/or any selling stockholders may sell any combination of the securities described in this prospectus in one or more offerings from time to time. This prospectus provides you with a general description of the securities we and/or any selling stockholders may offer. Each time we and/or any selling stockholders sell securities under this shelf registration, a prospectus supplement will be provided that will contain specific information about the terms of that offering. The prospectus supplement may also add, update or change information contained in this prospectus. Therefore, if there is any inconsistency between the information contained or incorporated by reference in this prospectus and the prospectus supplement, you should rely on the information in the prospectus supplement (including any information incorporated by reference therein). You should read both this prospectus and any prospectus supplement together with additional information described under the headings “Where You Can Find More Information” and “Incorporation of Certain Information by Reference.”

We and/or any selling stockholders have not authorized any dealer, salesperson or other person to give any information or to make any representation other than those contained or incorporated by reference in this prospectus and the accompanying supplement to this prospectus. You must not rely upon any information or representation not contained or incorporated by reference in this prospectus or the accompanying prospectus supplement. This prospectus and the accompanying prospectus supplement do not constitute an offer to sell or the solicitation of an offer to buy any securities other than the registered securities to which they relate, nor do this prospectus and the accompanying prospectus supplement constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation in such jurisdiction. You should not assume that the information contained in this prospectus and the accompanying prospectus supplement is accurate on any date subsequent to the date set forth on the front of the document or that any information we have incorporated by reference is correct on any date subsequent to the date of the document incorporated by reference, even though this prospectus and any accompanying prospectus supplement is delivered or securities are sold on a later date.

Unless the context otherwise requires or as otherwise expressly stated, references in this prospectus to the “Company,” “we,” “us” and “our” and similar terms refer to CDW Corporation and its consolidated subsidiaries. References to our “common stock” or our “preferred shares” refer to the common stock or preferred stock of CDW Corporation.

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WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. In addition, we have filed with the SEC a Registration Statement on Form S-3 relating to the securities covered by this prospectus. This prospectus, which forms a part of the registration statement, does not contain all the information that is included in the registration statement. You will find additional information about us in the registration statement and the exhibits filed therewith and in our reports and proxy statements and other information incorporated by reference herein. Any statements made in this prospectus concerning the provisions of legal documents are not necessarily complete and you should read the documents that are filed as exhibits to the registration statement or otherwise filed with the SEC for a more complete understanding of the document or matter. Our SEC filings are available to you on the SEC’s website at http://www.sec.gov and through the Nasdaq Global Select Market, 165 Broadway, New York, New York 10006, on which our common stock is listed.

We maintain a website at http://www.cdw.com. You may access our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed pursuant to Sections 13(a) or 15(d) of the Securities Exchange Act of 1934 (the “Exchange Act”) with the SEC free of charge at our website as soon as reasonably practicable after such material is electronically filed with, or furnished to, the SEC. Except for the information incorporated by reference as noted below, our website and the information contained on that site, or connected to that site, are not incorporated into and are not a part of this prospectus.

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INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

The SEC allows the “incorporation by reference” of the information filed by us with the SEC into this prospectus, which means that important information can be disclosed to you by referring you to those documents and those documents will be considered part of this prospectus. Information that we file later with the SEC will automatically update and supersede the previously filed information. The documents listed below and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (other than portions of these documents deemed to be “furnished” or not deemed to be “filed,” including the portions of these documents that are either (1) described in paragraphs (d)(1), (d)(2), (d)(3) or (e)(5) of Item 407 of Regulation S-K promulgated by the SEC or (2) furnished under Item 2.02 or Item 7.01 of a Current Report on Form 8-K, including any exhibits included with such Items) after the date of this prospectus and prior to the termination of the offerings under this prospectus are incorporated by reference herein:

Any statement contained in a document incorporated or deemed to be incorporated by reference into this prospectus will be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or any other subsequently filed document that is deemed to be incorporated by reference into this prospectus modifies or supersedes the statement. Any statement so modified or superseded will not be deemed, except as so modified or superseded, to constitute a part of this prospectus. Our Commission File Number is 001-35985.

If you make a request for such information in writing or by telephone, we will provide you, without charge, a copy of any or all of the information incorporated by reference into this prospectus. Any such request should be directed to:

CDW Corporation

200 N. Milwaukee Avenue

Vernon Hills, Illinois 60061

(847) 465-6000

Attention: Investor Relations

You should rely only on the information contained in, or incorporated by reference in, this prospectus. We have not authorized anyone else to provide you with different or additional information. This prospectus does not offer to sell or solicit any offer to buy any securities in any jurisdiction where the offer or sale is unlawful. You should not assume that the information in this prospectus or in any document incorporated by reference is accurate as of any date other than the date on the front cover of the applicable document.

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FORWARD-LOOKING STATEMENTS

This prospectus, any accompanying prospectus supplement and the documents incorporated by reference herein and therein may contain “forward-looking statements” within the meaning of the federal securities laws. All statements other than statements of historical fact included in this prospectus, any accompanying prospectus supplement and the documents incorporated by reference herein and therein are forward-looking statements. These statements relate to analyses and other information, which are based on forecasts of future results or events and estimates of amounts not yet determinable. These statements also relate to our future prospects, developments and business strategies. We claim the protection of The Private Securities Litigation Reform Act of 1995 for all forward-looking statements in this prospectus, any accompanying prospectus supplement and the documents incorporated by reference herein and therein.

These forward-looking statements are identified by the use of terms and phrases such as “anticipate,” “assume,” “believe,” “estimate,” “expect,” “goal,” “intend,” “plan,” “potential,” “predict,” “project,” “target” and similar terms and phrases or future or conditional verbs such as “could,” “may,” “should,” “will,” and “would.” However, these words are not the exclusive means of identifying such statements. Although we believe that our plans, intentions and other expectations reflected in or suggested by such forward-looking statements are reasonable, we cannot assure you that we will achieve those plans, intentions or expectations. All forward-looking statements are subject to risks and uncertainties that may cause actual results or events to differ materially from those that we expected.

Important factors that could cause actual results or events to differ materially from our expectations, or cautionary statements, are disclosed under the section entitled “Risk Factors” included in our most recent Annual Report on Form 10-K and from time to time in our subsequent Quarterly Reports on Form 10-Q and our other SEC filings. All written and oral forward-looking statements attributable to us, or persons acting on our behalf, are expressly qualified in their entirety by the cautionary statements contained in the section entitled “Risk Factors” included in our most recent Annual Report on Form 10-K as well as other cautionary statements that are made from time to time in our other SEC filings and public communications. You should evaluate all forward-looking statements made in this prospectus, any accompanying prospectus supplement and the documents incorporated by reference herein and therein in the context of these risks and uncertainties.

We caution you that the important factors referenced above may not reflect all of the factors that could cause actual results or events to differ from our expectations. In addition, we cannot assure you that we will realize the results or developments we expect or anticipate or, even if substantially realized, that they will result in the consequences or affect us or our operations in the way we expect. The forward-looking statements included or incorporated by reference herein are made only as of the date hereof or, with respect to any documents incorporated by reference, available at the time such document was prepared or filed with the SEC. We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law.

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OUR COMPANY

We are a Fortune 500 company, member of the S&P 500 Index, and a leading multi-brand provider of information technology (“IT”) solutions to small, medium and large business, government, education and healthcare customers in the United States, the United Kingdom and Canada. Our broad array of offerings ranges from discrete hardware and software products to integrated IT solutions and services that include on-premise and cloud capabilities across hybrid infrastructure, digital experience and security.

We are vendor, technology and consumption model “agnostic,” with a solutions portfolio including more than 100,000 products and services from more than 1,000 leading and emerging brands. Our solutions are delivered in physical, virtual and cloud-based environments through approximately 10,600 customer-facing coworkers, including sellers, highly-skilled technology specialists and advanced service delivery engineers. We are a leading sales channel partner for many original equipment manufacturers, software publishers and cloud providers (collectively, our “vendor partners”), whose products we sell or include in the solutions we offer. We provide our vendor partners with a cost-effective way to reach customers and deliver a consistent brand experience through our established end-market coverage, technical expertise and extensive customer access.

CDW Corporation is a Delaware corporation. CDW LLC is an Illinois limited liability company and a subsidiary of CDW Corporation. CDW Finance Corporation is a Delaware corporation and a subsidiary of CDW Corporation. Our principal executive offices are located at 200 N. Milwaukee Avenue, Vernon Hills, Illinois 60061, and our telephone number at that address is (847) 465-6000. Our website is located at http://www.cdw.com. The information contained on that site, or connected to that site, is not incorporated into and is not a part of this prospectus.

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RISK FACTORS

Our business is subject to uncertainties and risks. You should carefully consider and evaluate all of the information included and incorporated by reference in this prospectus, including the risk factors incorporated by reference from our most recent Annual Report on Form 10-K and our subsequent Quarterly Reports on Form 10-Q. Our business, financial condition, liquidity or results of operations could be materially adversely affected by any of these risks.

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GUARANTOR DISCLOSURES

CDW Corporation and certain of CDW LLC’s direct and indirect, wholly-owned, domestic subsidiaries (the “Guarantor Subsidiaries”) may guarantee debt securities of CDW LLC and CDW Finance Corporation as described in “Description of Debt Securities and Guarantees” in this prospectus and as further described in an applicable prospectus supplement. Any such guarantees by CDW Corporation and the Guarantor Subsidiaries will be joint and several, and full and unconditional; provided that guarantees by the Guarantor Subsidiaries are subject to certain customary release provisions contained in the indentures.

We have filed this prospectus with the SEC registering, among other securities, debt securities of CDW LLC and CDW Finance Corporation, which will be fully and unconditionally guaranteed by the Company. Under Rule 3-10 of Regulation S-X, separate consolidated financial statements of our CDW LLC and CDW Finance Corporation have not been presented.

As permitted by Rule 13-01 of Regulation S-X, in lieu of providing such separate consolidated financial statements, we have presented the following supplemental summarized Balance Sheet information as of December 31, 2022 and December 31, 2021, and Statement of Operations information for the years ended December 31, 2022 and 2021 for the accounts of the CDW LLC, CDW Finance Corporation and the accounts of the Guarantor Subsidiaries (the “Obligor Group”). The financial information of the Obligor Group is presented on a combined basis and the intercompany balances and transactions between the Obligor Group have been eliminated.

Balance Sheet Information

Statements of Operations Information

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USE OF PROCEEDS

Unless otherwise indicated in the applicable prospectus supplement, we will use the net proceeds from the sale of the securities for general corporate purposes, which may include capital expenditures, working capital, acquisitions, investments and the repayment of indebtedness. Pending these uses, the net proceeds may also be temporarily invested in short- and medium-term investments, including, but not limited to, marketable securities.

We will not receive any proceeds from the sale of common stock by any selling stockholders.

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DESCRIPTION OF CAPITAL STOCK

The following summary of certain provisions of our capital stock does not purport to be complete and is subject to our amended and restated certificate of incorporation (the “Certificate of Incorporation”), our amended and restated bylaws (the “Bylaws”) and provisions of applicable law. Copies of our Certificate of Incorporation and Bylaws are incorporated by reference into the registration statement, of which this prospectus is a part.

Authorized Capital Stock

Our authorized capital stock consists of 1,000,000,000 shares of common stock, par value $0.01 per share, and 100,000,000 shares of preferred stock, par value $0.01 per share.

Common Stock Voting Rights

Each holder of common stock is entitled to one vote per share on each matter submitted to a vote of stockholders. Our Bylaws provide that the presence, in person or by proxy, of holders of a majority in voting power of the outstanding capital stock entitled to vote at a stockholders’ meeting shall constitute a quorum. When a quorum is present, the affirmative vote of the majority of voting power of capital stock present in person or represented by proxy at the meeting and entitled to vote on the subject matter is required to take action, unless otherwise specified by law or our Certificate of Incorporation. There are no cumulative voting rights.

Common Stock Dividend Rights

Each holder of shares of common stock is entitled to receive such dividends and other distributions in cash, stock or property as may be declared by our board of directors (“Board”) from time to time out of our assets or funds legally available for dividends or other distributions. These rights are subject to the preferential rights of any other class or series of our preferred stock that we may designate and issue in the future.

The Delaware General Corporation Law (the “DGCL”) permits a corporation to declare and pay dividends out of “surplus” or, if there is no “surplus,” out of its net profits for the fiscal year in which the dividend is declared and/or the preceding fiscal year. “Surplus” is defined as the excess of the net assets of the corporation over the amount determined to be the capital of the corporation by the board of directors. The capital of the corporation is typically calculated to be (and cannot be less than) the aggregate par value of all issued shares of capital stock. Net assets equals the fair value of the total assets minus total liabilities. The DGCL also provides that dividends may not be paid out of net profits if, after the payment of the dividend, remaining capital would be less than the capital represented by the outstanding stock of all classes having a preference upon the distribution of assets.

Declaration and payment of any dividend will be subject to the discretion of the Board. The time and amount of dividends will be dependent upon our results of operations, financial condition, business prospects, capital requirements, contractual restrictions (including in current or future agreements governing our indebtedness), restrictions imposed by applicable law, tax considerations and other factors that the Board deems relevant.

Since the fourth quarter of 2013, we have paid a quarterly cash dividend on our common stock and we currently expect to continue to pay a cash dividend on our common stock. However, any determination to pay dividends in the future will be at the discretion of our board of directors.

Other Rights

Each holder of common stock is subject to, and may be adversely affected by, the rights of the holders of any series of preferred stock that we may designate and issue in the future. Holders of common stock will have no preemptive, conversion or other rights to subscribe for additional shares.

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Liquidation Rights

In the event of any voluntary or involuntary liquidation, dissolution or winding up of our affairs, holders of our common stock would be entitled to share ratably in our assets that are legally available for distribution to stockholders after payment of our debts and other liabilities. If we have any preferred stock outstanding at such time, holders of the preferred stock may be entitled to distribution and/or liquidation preferences. In either such case, we must pay the applicable distribution to the holders of our preferred stock before we may pay distributions to the holders of our common stock.

Preferred Stock

The Board has the authority to issue shares of preferred stock from time to time on terms it may determine, to divide shares of preferred stock into one or more series and to fix the designations, preferences, privileges and restrictions of preferred stock, including dividend rights, conversion rights, voting rights, terms of redemption, liquidation preference, sinking fund terms and the number of shares constituting any series or the designation of any series to the fullest extent permitted by the DGCL. The issuance of our preferred stock could have the effect of decreasing the trading price of our common stock, restricting dividends on our capital stock, diluting the voting power of our common stock, impairing the liquidation rights of our capital stock, or delaying or preventing a change in control of our company. At present, we have no plans to issue preferred stock.

Anti-Takeover Effects of the Certificate of Incorporation and Bylaws

The Certificate of Incorporation and Bylaws contain provisions that may delay, defer or discourage another party from acquiring control of us. We expect that these provisions, which are summarized below, will discourage coercive takeover practices or inadequate takeover bids. These provisions are also designed to encourage persons seeking to acquire control of us to first negotiate with the Board, which we believe may result in an improvement of the terms of any such acquisition in favor of our stockholders. However, they also give the Board the power to discourage acquisitions that some stockholders may favor.

Undesignated Preferred Stock

The ability to authorize undesignated preferred stock will make it possible for the Board to issue preferred stock with super voting, special approval, dividend or other rights or preferences on a discriminatory basis that could impede the success of any attempt to acquire us. These and other provisions may have the effect of deferring, delaying or discouraging hostile takeovers, or changes in control or management of our company.

Stockholder Action by Written Consent

The Certificate of Incorporation provides that any action required or permitted to be taken by our stockholders may be effected only at a duly called annual or special meeting of the stockholders and cannot be taken by written consent in lieu of a meeting.

Special Meeting of Stockholders and Advance Notice Requirements for Stockholder Proposals

The Certificate of Incorporation and Bylaws provide that, except as otherwise required by law, special meetings of the stockholders can only be called (i) by or at the direction of the Board pursuant to a written resolution adopted by the affirmative vote of the majority of the total number of directors that we would have if there were no vacancies or (ii) subject to the requirements and limitations of the Bylaws, by the Secretary, the Chair of the Board or the Board of Directors upon the written request of one or more stockholders entitled to cast on the matter(s) to be brought before a special meeting requested by one or more stockholders pursuant to Section 3 of the Bylaws not less than twenty five percent (25%) of the voting power of all outstanding shares as of the date of the request, which request complies with the procedures for calling a special meeting of

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stockholders as set forth in the Bylaws, as may be amended from time to time. Any business transacted at any special meeting of stockholders shall be limited to matters relating to the purpose or purposes stated in the notice of the meeting.

In addition, the Bylaws require advance notice procedures for stockholder proposals to be brought before an annual meeting of the stockholders, including the nomination of directors. Stockholders at an annual meeting may only consider the proposals specified in the notice of meeting or brought before the meeting by or at the direction of the Board, or by a stockholder of record on the record date for the meeting, who is entitled to vote at the meeting and who has delivered a timely written notice, in proper form to our secretary, of the stockholder’s intention to bring such business before the meeting.

These provisions could have the effect of delaying until the next stockholder meeting any stockholder actions, even if they are favored by the holders of a majority of our outstanding voting securities.

Business Combinations with Interested Stockholders

We are subject to Section 203 of the DGCL, an anti-takeover law. In general, Section 203 prohibits a publicly held Delaware corporation from engaging in a business combination, such as a merger, with a person or group owning 15% or more of the corporation’s voting stock for a period of three years following the date the person became an interested stockholder, unless (with certain exceptions) the business combination or the transaction in which the person became an interested stockholder is approved in a prescribed manner.

Exclusive Jurisdiction of Certain Actions

The Certificate of Incorporation requires, to the fullest extent permitted by law, that derivative actions brought in our name, actions against directors, officers and employees for breach of fiduciary duty and other similar actions may be brought only in the Court of Chancery in the State of Delaware. Although we believe this provision benefits us by providing increased consistency in the application of Delaware law in the types of lawsuits to which it applies, the provision may have the effect of discouraging lawsuits against our directors and officers. The enforceability of similar exclusive jurisdiction provisions in other companies’ certificates of incorporation has been challenged in legal proceedings, and it is possible that, in connection with any action, a court could find the exclusive jurisdiction provision contained in the Certificate of Incorporation to be inapplicable or unenforceable in such action.

Transfer Agent and Registrar

The transfer agent and registrar for our common stock is Computershare Trust Company, N.A.

Listing

Our common stock is listed on the Nasdaq Global Select Market under the trading symbol “CDW.”

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DESCRIPTION OF DEPOSITARY SHARES

The following description of the depositary shares and the terms of the deposit agreement is a summary. It summarizes only those aspects of the depositary shares and those portions of the deposit agreement that we believe will be most important to your decision to invest in our depositary shares. There may be other provisions in the deposit agreement that are also important to you. You should read the deposit agreement for a full description of the terms of the depositary shares. The form of the deposit agreement will be filed or incorporated by reference as an exhibit to the registration statement of which this prospectus is a part.

The particular terms of the depositary shares offered by any prospectus supplement and the extent to which the general provisions described below may apply to such depositary shares will be outlined in the applicable prospectus supplement.

General

We may elect to offer fractional interests in preferred shares, rather than offer whole preferred shares. If we choose to do this, we will provide for the issuance by a depositary to the public of receipts for depositary shares. Each depositary share will represent fractional interests of a particular series of preferred shares.

The shares of any series of preferred shares underlying the depositary shares will be deposited under a separate deposit agreement between us and a bank or trust company, which we will select. The bank or trust company must have its principal office in the United States and a combined capital and surplus of at least $50,000,000. The prospectus supplement relating to a series of depositary shares will state the name and address of the depositary. Unless otherwise provided by the deposit agreement, each owner of depositary shares will be entitled, in proportion to the applicable fractional interests in preferred shares underlying the depositary shares, to all the rights and preferences of the preferred stock underlying the depositary shares including dividend, voting, redemption, conversion and liquidation rights.

The depositary shares will be evidenced by depositary receipts issued under the deposit agreement. Depositary receipts will be distributed to those persons purchasing the fractional interests in shares of the related series of preferred shares in accordance with the terms of the offering described in the related prospectus supplement.

Dividends and Other Distributions

The depositary will distribute all cash dividends or other cash distributions received in respect of preferred shares to the record holders of depositary shares relating to the preferred shares in proportion to the numbers of the depositary shares owned by the holders on the relevant record date. The depositary will distribute only an amount, however, that can be distributed without attributing to any holder of depositary shares a fraction of one cent, and any balance not so distributed will be added to and treated as part of the next sum received by the depositary for distribution to record holders of depositary shares.

If there is a non-cash distribution, the depositary will distribute property received by it to the record holders of depositary shares entitled to it, unless the depositary determines that it is not feasible to make the distribution. If this happens, the depositary may, with our approval, sell the property and distribute the net sale proceeds to the holders. The deposit agreement will also contain provisions relating to the manner in which any subscription or similar rights that we offer to holders of the preferred stock will be made available to the holders of depositary shares.

Redemption of Depositary Shares

If a series of the preferred shares underlying the depositary shares is redeemed in whole or in part, the depositary shares will be redeemed from the redemption proceeds received by the depositary. The depositary will

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mail notice of redemption not less than 30, and not more than 60, days before the date fixed for redemption to the record holders of the depositary shares to be redeemed at their addresses appearing in the depositary’s books. The redemption price for each depositary share will be equal to the applicable fraction of the redemption price for each share payable with respect to the series of the preferred shares. Whenever we redeem preferred shares held by the depositary, the depositary will redeem on the same redemption date the number of depositary shares relating to the preferred shares so redeemed. If less than all of the depositary shares are to be redeemed, the depositary shares to be redeemed will be selected by lot or proportionally as may be determined by the depositary.

After the date fixed for redemption, the depositary shares called for redemption will no longer be considered outstanding and all rights of the holders of the depositary shares will cease, except the right to receive the cash, securities or other property payable upon the redemption and any cash, securities or other property to which the holders of the redeemed depositary shares were entitled upon surrender to the depositary of the depositary receipts evidencing the depositary shares.

The amount distributed in any of the foregoing cases will be reduced by any amount required to be withheld by us or the depositary on account of any taxes.

Voting the Preferred Shares

Upon receipt of notice of any meeting at which the holders of the preferred shares are entitled to vote, the depositary will mail the information contained in the notice of meeting to the record holders of the depositary shares relating to the preferred shares. Each record holder of depositary shares on the record date, which will be the same date as the record date for the preferred shares, will be entitled to instruct the depositary how to exercise the voting rights pertaining to the number of preferred shares underlying the holder’s depositary shares. The depositary will endeavor, to the extent practicable, to vote the number of preferred shares underlying the depositary shares in accordance with these instructions, and we will agree to take all action which the depositary may consider necessary in order to enable the depositary to vote the shares. The depositary will abstain from voting preferred shares to the extent it does not receive specific instructions from the holders of depositary shares representing such preferred shares.

Amendment and Termination of Depositary Agreement

We may enter into an agreement with the depositary at any time to amend the form of depositary receipt evidencing the depositary shares and any provision of the deposit agreement. However, the holders of a majority of the depositary shares must approve any amendment which materially and adversely alters the rights of the existing holders of depositary shares. We or the depositary may terminate the deposit agreement only if (a) all outstanding depositary shares issued under the agreement have been redeemed or (b) a final distribution in connection with any liquidation, dissolution or winding up has been made to the holders of the depositary shares.

Charges of Depositary

We will pay all transfer and other taxes and governmental charges arising solely from the existence of the depositary arrangements. We will also pay charges of the depositary in connection with the initial deposit of the preferred shares and any redemption of the preferred shares. Holders of depositary shares will pay transfer and other taxes and governmental charges and such other charges as are expressly provided in the deposit agreement to be for their accounts.

Resignation and Removal of Depositary

The depositary may resign at any time by delivering to us notice of its election to resign, and we may at any time remove the depositary. Any resignation or removal will take effect when a successor depositary has been

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appointed and has accepted the appointment. Appointment must occur within 60 days after delivery of the notice of resignation or removal. The successor depositary must be a bank or trust company having its principal office in the United States and having a combined capital and surplus of at least $50,000,000.

Miscellaneous

The depositary will forward to the holders of depositary shares all reports and communications that we deliver to the depositary and that we are required to furnish to the holders of the preferred shares. Neither the depositary nor we will be liable if it is prevented or delayed by law or any circumstance beyond its control in performing its obligations under the deposit agreement. The obligations of us and the depositary under the deposit agreement will be limited to performance in good faith of their duties under the agreement and they will not be obligated to prosecute or defend any legal proceeding in respect of any depositary shares or preferred shares unless the holders provide them with satisfactory indemnity. They may rely upon written advice of counsel or accountants, or information provided by persons presenting preferred stock for deposit, holders of depositary shares or other persons believed to be competent and on documents they believe to be genuine.

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DESCRIPTION OF WARRANTS

The following description of the warrants and terms of the warrant agreement is a summary. It summarizes only those aspects of the warrants and those portions of the warrant agreement which we believe will be most important to your decision to invest in our warrants. There may be other provisions in the warrant agreement and the warrant certificate relating to the warrants which are also important to you. You should read these documents for a full description of the terms of the warrants. The forms of the warrant agreement and the warrant certificate will be filed or incorporated by reference as exhibits to the registration statement of which this prospectus is a part.

General

We may issue warrants to purchase debt or equity securities. We may issue warrants independently or together with any offered securities. The warrants may be attached to or separate from those offered securities. We will issue the warrants under warrant agreements to be entered into between us and a bank or trust company, as warrant agent, all as described in the applicable prospectus supplement. The warrant agent will act solely as our agent in connection with the warrants and will not assume any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants.

The prospectus supplement relating to any warrants that we may offer will contain the specific terms of the warrants. These terms may include, but are not limited to, the following:

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Exercise of Warrants

Each warrant will entitle the holder of warrants to purchase for cash the amount of debt or equity securities, at the exercise price stated or determinable in the prospectus supplement for the warrants. Warrants may be exercised at any time up to the close of business on the expiration date shown in the prospectus supplement relating to the warrants, unless otherwise specified in the applicable prospectus supplement. After the close of business on the expiration date, unexercised warrants will become void. Warrants may be exercised as described in the prospectus supplement relating to the warrants. When the warrant holder makes the payment and properly completes and signs the warrant certificate at the corporate trust office of the warrant agent or any other office indicated in the prospectus supplement, we will, as soon as possible, forward the debt or equity securities that the warrant holder has purchased. If the warrant holder exercises the warrant for less than all of the warrants represented by the warrant certificate, we will issue a new warrant certificate for the remaining warrants.

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DESCRIPTION OF SUBSCRIPTION RIGHTS

This section describes the general terms of the subscription rights to purchase common stock or other securities that we may offer to stockholders using this prospectus. The following description is only a summary and does not purport to be complete. You must look at the applicable forms of subscription agent agreement and subscription certificate for a full understanding of all terms of any series of subscription rights. The forms of the subscription agent agreement and the subscription certificate will be filed or incorporated by reference as exhibits to the registration statement of which this prospectus is a part.

General

Subscription rights may be issued independently or together with any other security and may or may not be transferable. As part of the rights offering, we may enter into a standby underwriting or other arrangement under which the underwriters or any other person would purchase any securities that are not purchased in such rights offering. If we issue subscription rights, they may be governed by a separate subscription agent agreement that we will sign with a bank or trust company, as rights agent, that will be named in the applicable prospectus supplement. The rights agent will act solely as our agent and will not assume any obligation to any holders of rights certificates or beneficial owners of rights.

In general, a right entitles the holder to purchase for cash a specific number of shares of common stock or other securities at a specified exercise price. The rights are normally issued to stockholders as of a specific record date, may be exercised only for a limited period of time and become void following the expiration of such period. If we determine to issue subscription rights, we will accompany this prospectus with a prospectus supplement that will describe, among other things:

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If fewer than all of the rights issued in any rights offering are exercised, we may offer any unsubscribed securities directly to persons other than stockholders, to or through agents, underwriters or dealers or through a combination of such methods, including pursuant to standby arrangements, as described in the applicable prospectus supplement.

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DESCRIPTION OF DEBT SECURITIES AND GUARANTEES

The following description discusses the general terms and provisions of the debt securities that we may offer under this prospectus. The debt securities may be issued as senior debt securities or subordinated debt securities. The indebtedness represented by the senior debt securities will rank equally with all of our other unsecured and unsubordinated debt. The senior debt securities will, however, be subordinated in right of payment to all of our secured indebtedness to the extent of the value of the assets securing that indebtedness. The indebtedness represented by the subordinated debt securities will rank junior and be subordinate in right of payment to the prior payment in full of our senior debt, to the extent and in the manner set forth in the applicable prospectus supplement for the securities.

Unless otherwise specified in the applicable prospectus supplement, the senior debt securities and the subordinated debt securities will be issued by CDW LLC and CDW Finance Corporation and will be guaranteed by CDW Corporation and/or one or more of our domestic subsidiaries. The senior debt securities and the subordinated debt securities will be issued under indenture(s) between us and one or more United States banking institutions. Unless otherwise specified in the applicable prospectus supplement, the trustee under the indentures will be U.S. Bank National Association.

The form of the indenture is filed as an exhibit to the registration statement of which this prospectus is a part. The indenture is subject to and governed by the Trust Indenture Act of 1939, as amended, or the Trust Indenture Act, and may be supplemented or amended from time to time following its execution. The form of the indenture gives us broad authority to set the particular terms of each series of debt securities, including the right to modify certain of the terms contained in the indenture. The particular terms of a series of debt securities and the extent, if any, to which the particular terms of the issue modify the terms of the form of indenture will be described in the prospectus supplement relating to such series of debt securities.

CDW LLC and CDW Finance Corporation may also issue additional senior debt securities under the indenture governing their 5.500% Senior Notes due December 2024 (the “December 2024 Senior Notes”), the indenture governing their 4.125% Senior Notes due May 2025 (the “May 2025 Senior Notes”), the indenture governing their 2.670% Senior Notes due December 2026 (the “December 2026 Senior Notes”), the indenture governing their 4.250% Senior Notes due April 2028 (the “April 2028 Senior Notes”), the indenture governing their 3.276% Senior Notes due December 2028 (the “December 2028 Senior Notes”), the indenture governing their 3.250% Senior Notes due February 2029 (the “February 2029 Senior Notes”), or the indenture governing their 3.569% Senior Notes due December 2031 (the “December 2031 Senior Notes”), which will have terms substantially identical in all material respects to the December 2024 Senior Notes, the May 2025 Senior Notes, the December 2026 Senior Notes, the April 2028 Senior Notes, the December 2028 Senior Notes, the February 2029 Senior Notes, or the December 2031 Senior Notes, respectively, and which will be guaranteed by CDW Corporation and certain of our domestic subsidiaries that are guarantors under our senior unsecured term loan facility. The notes issued under any such series and any additional notes issued under such series will be treated as a single class for all purposes of the indenture governing such series. The indentures governing the December 2024 Senior Notes, the May 2025 Senior Notes, the December 2026 Senior Notes, the April 2028 Senior Notes, the December 2028 Senior Notes, the February 2029 Senior Notes and the December 2031 Senior Notes are filed as exhibits to the registration statement of which this prospectus is a part.

The following summary describes selected provisions of the form of indenture. This summary does not describe every aspect of the debt securities or the indenture and is subject to, and qualified in its entirety by reference to, all the provisions of the indenture, including the terms defined in the indenture. We urge you to read the indenture in its entirety. This summary is also subject to, and qualified in its entirety by reference to, the description of the particular debt securities in the applicable prospectus supplement.

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General

The indenture provides that we will be able to issue an unlimited aggregate principal amount of debt securities under the indentures, in one or more series, and in any currency or currency units. We are not required to issue all debt securities of one series at the same time and, unless otherwise provided, we may reopen a series, without the consent of the holders of the debt securities of that series, for issuances of additional debt securities of that series.

Prior to the issuance of each series of debt securities, the terms of the particular securities will be specified in a supplemental indenture or a resolution of our board of directors or in one or more officers’ certificates pursuant to a board resolution. We will describe in the applicable prospectus supplement the terms of the debt securities being offered, including:

The general provisions of the indentures do not contain any provisions that would limit our ability or the ability of our subsidiaries to incur indebtedness or that would afford holders of our debt securities protection in the event of a highly leveraged or similar transaction involving us or any of our subsidiaries. Please refer to the applicable prospectus supplement for information with respect to any deletions from, modifications of or

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additions to, the events of default described below that are applicable to the offered debt securities or any covenants or other provisions providing event risk or similar protection.

Payment

Unless we state otherwise in the applicable prospectus supplement, we will pay interest on a debt security on each interest payment date to the person in whose name the debt security is registered as of the close of business on the regular record date relating to the interest payment date.

Unless we state otherwise in the applicable prospectus supplement, we will pay principal of and any premium on the debt securities at stated maturity, upon redemption or otherwise, upon presentation of the debt securities at the office of the trustee, as our paying agent, or at other designated places. Any other paying agent initially designated for the debt securities of a particular series will be identified in the applicable prospectus supplement.

Forms, Transfers and Exchanges

The debt securities of each series will be issued only in fully registered form, without interest coupons. Unless we state otherwise in the applicable prospectus supplement, the debt securities will be issued in denominations of $2,000 each and integral multiples of $1,000 in excess of $2,000.

Subject to the terms of the indenture and the limitations applicable to global securities, you may exchange or transfer debt securities at the corporate trust office of the trustee or at any other office or agency maintained by us for that purpose, without the payment of any service charge, except for any tax or governmental charge.

Global Securities

The debt securities of any series may be issued, in whole or in part, by one or more global certificates that will be deposited with the depositary identified in the applicable prospectus supplement.

No global security may be exchanged in whole or in part for the debt securities registered in the name of any person other than the depositary for that global security or any nominee of that depositary except in the following circumstances or as otherwise provided in the applicable prospectus supplement. The depositary may discontinue providing its services as depositary with respect to the securities at any time by giving reasonable notice to us. Under such circumstances, in the event that a successor depositary is not obtained, certificates are required to be printed and delivered. In addition, we may decide to discontinue use of the system of book-entry-only transfers through a depositary. In that event, certificates will be printed and delivered to the depositary.

Unless otherwise stated in any prospectus supplement, The Depository Trust Company (“DTC”) will act as depositary. Beneficial interests in global certificates will be shown on, and transfers of global certificates will be effected only through records maintained by DTC and its participants.

Events of Default

Unless otherwise specified in the applicable prospectus supplement, an event of default occurs with respect to debt securities of any series if:

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If an event of default (other than an event of default with respect to certain events of bankruptcy affecting us) shall occur and be continuing, the trustee acting at the written direction of the holders of at least 25% in aggregate principal amount of the then total outstanding debt securities of an affected series may declare the principal of the debt securities and any accrued interest on the debt securities to be due and payable by notice in writing to us and the trustee specifying the respective event of default and that it is a “notice of acceleration,” and the same shall become immediately due and payable.

Upon such declaration of acceleration, the aggregate principal amount of, and accrued and unpaid interest, if any, on all of the outstanding debt securities shall ipso facto become and be immediately due and payable in cash without any declaration or other act on the part of the trustee or any holder of the debt securities. After such acceleration, but before a judgment or decree based on acceleration, the holders of a majority in aggregate principal amount of such outstanding debt securities may, under certain circumstances, rescind and annul such acceleration if all events of default, other than the nonpayment of accelerated principal of or interest on such debt securities, have been cured or waived as provided in the indenture.

The holders of a majority in aggregate principal amount of the debt securities then outstanding by written notice to the trustee may waive any existing default or event of default and its consequences:

No such rescission shall affect any subsequent default or impair any right consequent thereto.

If an event of default of the type related to certain events of bankruptcy affecting us with respect to us occurs and is continuing, then all unpaid principal of, and premium, if any, and accrued and unpaid interest, if any, on all of the outstanding debt securities shall ipso facto become and be immediately due and payable without any declaration or other act on the part of the trustee or any holder of the securities.

No holder of any debt security will have any right to institute any proceeding with respect to the debt securities or for any remedy thereunder, unless such holder shall have previously given the trustee written notice

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of a continuing event of default and unless also the holders of at least 25% in aggregate principal amount of the then outstanding debt securities shall have made written request, and offered reasonable indemnity satisfactory to the trustee, to the trustee to institute such proceeding as trustee, and the trustee shall not have received from the holders of a majority in aggregate principal amount of the outstanding debt securities a direction inconsistent with such request and shall have failed to institute such proceeding within 60 days. Such limitations do not apply, however, to a suit instituted by a holder of a debt security for enforcement of payment of the principal of (and premium, if any) or interest on such debt security on or after the respective due dates expressed in such debt security.

The holders of not less than a majority in aggregate principal amount of the issued and then outstanding debt securities of the affected series by notice to the trustee may on behalf of the holders of all of the debt securities waive any existing default or event of default under the indenture, and its consequences, except a default in the payment of the principal of, premium, if any, or interest on such debt securities. Upon such waiver such default shall cease to exist with respect to the applicable series, and any event of default arising therefrom shall be deemed to have been cured with respect to the applicable series for every purpose of this indenture; but no such waiver shall extend to any subsequent or other default or impair any right consequent thereon.

Holders of the debt securities may not enforce the indenture or such debt securities except as provided in such indenture and under the Trust Indenture Act. Subject to the provisions of the indenture relating to the duties of the trustee, the trustee is under no obligation to exercise any of its rights or powers under the indenture at the request, order or direction of any of the holders of the debt securities, unless such holders have offered to the trustee reasonable indemnity satisfactory to the trustee. Subject to all provisions of the indenture and applicable law, the holders of a majority in aggregate principal amount of the then outstanding debt securities of a series issued under the Indenture have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or power conferred on the trustee.

We are required to deliver to the trustee annually a statement regarding compliance with the indenture. Upon becoming aware of any default or event of default, we are required to promptly deliver to the trustee a statement specifying such default or event of default (unless such default or event of default has been cured prior to such time).

Merger or Consolidation

The indenture provides that we may not consolidate or merge with or into another person, whether or not we are the surviving entity, and that we may not sell, assign, transfer, convey, lease or otherwise dispose of all or substantially all of our properties and assets in one or more related transactions, to another person, unless:

Upon any consolidation or merger, or any sale, assignment, transfer, lease, conveyance or other disposition of all or substantially all of our assets or a guarantor in accordance with the indenture, the successor corporation formed shall succeed to, and be substituted for (so that from and after the date of such consolidation, merger,

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sale, lease, conveyance or other disposition, the provisions of the indenture referring to us shall refer instead to the successor corporation), and shall exercise every right and power of, us under the indenture with the same effect as if such successor person had been named as us; provided that the we shall not be relieved from the obligation to pay the principal of and interest on the debt securities except in the case of a sale, assignment, transfer, conveyance or other disposition of all of our assets.

Modification or Waiver

Without the consent of any holder, we and the trustee may modify the indenture for any of the following purposes:

We and the trustee may, with some exceptions, amend or modify either indenture with the consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of all series affected by the amendment or modification. However, no amendment or modification may, without the consent of the holder of each outstanding debt security affected thereby:

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Legal Defeasance and Covenant Defeasance

The indenture provides that we may, at our option and at any time, elect to have all of our obligations and the obligations of the applicable guarantors discharged with respect to any outstanding debt securities issued under the indenture, subject to the terms and conditions as specified in the applicable prospectus supplement, except for:

In addition, we may, at our option and at any time, elect to have our obligations and the obligations of the guarantors released with respect to certain covenants that are described in the indenture and thereafter any omission to comply with those covenants will not constitute a default or event of default with respect to the debt securities issued thereunder. In the event that a covenant defeasance occurs, certain events (not including nonpayment, bankruptcy, receivership, rehabilitation and insolvency events of ours) described under “—Events of Default” will no longer constitute an event of defaults with respect the debt securities issued under the indenture.

In order to exercise either legal defeasance or covenant defeasance under the indenture:

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Senior Debt Securities

The senior debt securities will be unsecured senior obligations and will rank equally with all other senior unsecured and unsubordinated debt. The senior debt securities will, however, be effectively subordinated in right of payment to all of our secured indebtedness to the extent of the value of the assets securing that indebtedness. Except as provided in the senior indenture or specified in any authorizing resolution or supplemental indenture relating to a series of senior debt securities to be issued, no senior indenture will limit the amount of additional indebtedness that may rank equally with the senior debt securities or the amount of indebtedness, secured or otherwise, that may be incurred or preferred shares that may be issued by any of our subsidiaries.

Subordinated Debt

Subordinated debt securities will be subordinate and junior in right of payment, to the extent and in the manner set forth in the indenture, to all of our “senior indebtedness.” The indenture defines “senior indebtedness” as all obligations or indebtedness of, or guaranteed or assumed by, us for borrowed money whether or not represented by bonds, notes, debentures or other similar instruments, and amendments, renewals, extensions,

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modifications and refundings of any such indebtedness or obligation, in each case, whether outstanding on the date hereof or the date the debt securities are issued or created, incurred, or thereafter guaranteed or assumed. “Senior indebtedness” does not include any subordinated debt securities or any other obligations specifically designated as being subordinate in right of payment to senior indebtedness.

In general, the holders of all senior indebtedness are first entitled to receive payment of the full amount unpaid on senior indebtedness before the holders of any of the subordinated debt securities are entitled to receive a payment on account of the principal or interest on the indebtedness evidenced by the subordinated debt securities in certain events. Because the subordinated debt securities will be our unsecured obligations, our secured debt and other secured obligations will also be effectively senior to the subordinated debt securities to the extent of the value of the assets securing such debt or other obligations.

Corporate Existence

Subject to the terms of the indenture, we will do or cause to be done all things necessary to preserve and keep in full force and effect our corporate (and in the case of CDW LLC, limited liability company) existence, charter and statutory rights and franchises; provided, however, that we will not be required to preserve any right or franchise if we determine that the preservation thereof is no longer desirable in the conduct of our business.

Governing Law

The indentures and our debt securities will be governed by, and construed in accordance with, the law of the State of New York.

Guarantees

If the applicable prospectus supplement relating to a series of debt securities provides that those debt securities will have the benefit of a guarantee by CDW Corporation and/or any of its then existing or future domestic subsidiaries, then the debt securities will be fully and unconditionally guaranteed by such guarantors. Unless otherwise specified in the applicable prospectus supplement, we expect that the debt securities will be guaranteed by the guarantors under our existing indentures and our existing senior credit facilities. The guarantees will be general obligations of each guarantor. The guarantees will be joint and several obligations of the guarantors. If a series of debt securities is so guaranteed, the indenture or a supplemental indenture to the base indenture will be executed by each guarantor. The obligations of each guarantor under its guarantee will be limited as necessary to prevent that guarantee from constituting a fraudulent conveyance under applicable law. The terms of any guarantee and the conditions upon which any guarantor may be released from its obligations under that guarantee will be set forth in the applicable prospectus supplement.

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DESCRIPTION OF SHARE PURCHASE CONTRACTS AND SHARE PURCHASE UNITS

We may issue share purchase contracts, including contracts obligating holders to purchase from us, and us to sell to the holders, a specified number of shares of common stock at a future date or dates. The price per share of common stock and the number of shares of common stock may be fixed at the time the share purchase contracts are issued or may be determined by reference to a specific formula stated in the share purchase contracts.

The share purchase contracts may be issued separately or as part of units that we call “share purchase units.” Share purchase units consist of a share purchase contract and either our debt securities or debt obligations of third parties, including United States treasury securities, securing the holders’ obligations to purchase the common stock under the share purchase contracts.

The share purchase contracts may require us to make periodic payments to the holders of the share purchase units or vice versa, and these payments may be unsecured or refunded on some basis. The share purchase contracts may require holders to secure their obligations in a specified manner.

The applicable prospectus supplement will describe the terms of the share purchase contracts or share purchase units. The description in the prospectus supplement will only be a summary, and you should read the share purchase contracts, and, if applicable, collateral or depositary arrangements, relating to the share purchase contracts or share purchase units. Material United States federal income tax considerations applicable to the share purchase units and the share purchase contracts will also be discussed in the applicable prospectus supplement.

Each share purchase contract or share purchase unit and any related agreement will be governed by, and construed in accordance with, the laws of the State of New York.

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SELLING STOCKHOLDERS

Selling stockholders are persons or entities that, directly or indirectly, have acquired or will from time to time acquire from us, shares of common stock in various private transactions. Such selling stockholders may be parties to registration rights agreements with us, or we otherwise may have agreed or will agree to register their securities for resale. The initial purchasers of our securities, as well as their transferees, pledges, donees or successors, all of whom we refer to as “selling stockholders,” may from time to time offer and sell the securities pursuant to this prospectus and any applicable prospectus supplement.

The applicable prospectus supplement will set forth the name of each of the selling stockholders and the number of shares of our common stock beneficially owned by such selling stockholders that are covered by such prospectus supplement. The applicable prospectus supplement will also disclose whether any of the selling stockholders has held any position or office with, has been employed by or otherwise has had a material relationship with us during the three years prior to the date of the prospectus supplement.

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PLAN OF DISTRIBUTION

We may offer and sell the securities described in this prospectus, and certain stockholders may sell common stock, in one or more of the following ways from time to time in one or more transactions:

The prospectus supplement with respect to each series of securities will state the terms of the offering of the securities, including:

If we or any selling stockholders use underwriters or dealers in the sale, the securities will be acquired by the underwriters or dealers for their own account and may be resold from time to time in one or more transactions, including:

Any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers may be changed from time to time.

If underwriters are used in the sale of any securities, the securities may be offered either to the public through underwriting syndicates represented by managing underwriters, or directly by underwriters. Generally, the underwriters’ obligations to purchase the securities will be subject to certain conditions precedent. The underwriters will be obligated to purchase all of the securities if they purchase any of the securities.

We may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and will be identified in the applicable prospectus supplement or a post-effective amendment to this registration statement.

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If indicated in an applicable prospectus supplement, we and any selling stockholders may sell the securities through agents from time to time. The applicable prospectus supplement will name any agent involved in the offer or sale of the securities and any commissions paid to them. Generally, any agent will be acting on a best efforts basis for the period of its appointment. We and any selling stockholders may authorize underwriters, dealers or agents to solicit offers by certain purchasers to purchase the securities from us and any selling stockholders at the public offering price set forth in the applicable prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on a specified date in the future. The delayed delivery contracts will be subject only to those conditions set forth in the applicable prospectus supplement, and the applicable prospectus supplement will set forth any commissions paid for solicitation of these delayed delivery contracts.

Offered securities may also be offered and sold, if so indicated in the applicable prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more remarketing firms, acting as principals for their own accounts or as agents for us or any selling stockholders. Any remarketing firm will be identified and the terms of its agreements, if any, with us or any selling stockholders and its compensation will be described in the applicable prospectus supplement.

Agents, underwriters and other third parties described above may be entitled to indemnification by us or any selling stockholders against certain civil liabilities under the Securities Act, or to contribution with respect to payments which the agents or underwriters may be required to make in respect thereof. Agents, underwriters and such other third parties may be customers of, engage in transactions with, or perform services for us in the ordinary course of business.

Each series of securities will be a new issue of securities and may not have an established trading market, other than our common stock, which is listed on the Nasdaq Global Select Market. The securities other than the common stock may or may not be listed on a national securities exchange and no assurance can be given that there will be a secondary market for any such securities or liquidity in the secondary market if one develops. Any underwriters to whom securities are sold by us or any selling stockholders for public offering and sale may make a market in the securities, but such underwriters will not be obligated to do so and may discontinue any market making at any time without notice.

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LEGAL MATTERS

Certain legal matters with regard to the validity of the securities will be passed upon for us by Sidley Austin LLP, Chicago, Illinois. Certain matters under Maryland and Virginia law will be passed upon by DLA Piper LLP (US). Certain matters under Wisconsin law will be passed upon by FisherBroyles, LLP. Any underwriters or agents will be advised about other issues relating to any offering by counsel named in the applicable prospectus supplement.

EXPERTS

The consolidated financial statements of CDW Corporation and its subsidiaries appearing in CDW Corporation’s Annual Report (Form 10-K) for the year ended December 31, 2022, and the effectiveness of CDW Corporation and its subsidiaries’ internal control over financial reporting as of December 31, 2022, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their reports thereon, included therein, and incorporated herein by reference. Such financial statements are, and audited financial statements to be included in subsequently filed documents will be, incorporated herein in reliance upon the reports of Ernst & Young LLP pertaining to such financial statements and the effectiveness of our internal control over financial reporting as of the respective dates (to the extent covered by consents filed with the Securities and Exchange Commission) given on the authority of such firm as experts in accounting and auditing.

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CDW CORPORATION

Common Stock

Preferred Stock

Depositary Shares

Warrants

Subscription Rights

Debt Securities

Guarantees of Debt Securities

Share Purchase Contracts

Share Purchase Units

CDW LLC

CDW FINANCE CORPORATION

Debt Securities

Guarantees of Debt Securities

PROSPECTUS

The date of this prospectus is August 2, 2023.

You should rely only on the information contained or incorporated by reference in this prospectus. We have not authorized anyone to provide you with different information. You should not assume that the information contained or incorporated by reference in this prospectus is accurate as of any date other than the date of this prospectus. We are not making an offer of these securities in any state where the offer is not permitted.

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

The following is a statement of the estimated expenses, other than underwriting discounts and commissions payable by us or any selling stockholders, to be incurred by the registrants in connection with the issuance and distribution of securities registered under this Registration Statement on Form S-3.

Item 15. Indemnification of Directors and Officers.

We currently have directors’ and officers’ liability insurance policies to insure our directors and officers against liability for actions or omissions occurring in their capacity as a director or officer, subject to certain exclusions or limitations. There is currently no pending material litigation or proceeding involving any of our directors, officers or employees for which indemnification is sought.

We have also entered into indemnification agreements with each of our executive officers and directors. The indemnification agreements provide the executive officers and directors with contractual rights to indemnification, expense advancement and reimbursement, to the fullest extent permitted under Delaware law.

Delaware

CDW Corporation and CDW Finance Corporation are each incorporated under the laws of the State of Delaware.

Section 145 (“Section 145”) of the Delaware General Corporation Law, as the same exists or may hereafter be amended (the “DGCL”), provides that a Delaware corporation may indemnify any persons who were, are or are threatened to be made, parties to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of such corporation), by reason of the fact that such person is or was an officer, director, employee or agent of such corporation, or is or was serving at the request of such corporation as a director, officer, employee or agent of another corporation or enterprise. The indemnity may include expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or proceeding, provided such person acted in good faith and in a manner he reasonably believed to be in or not opposed to the corporation’s best interests and, with respect to any criminal action or proceeding, had no reasonable cause to

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believe that his conduct was illegal. A Delaware corporation may indemnify any persons who are, were or are threatened to be made, a party to any threatened, pending or completed action or suit by or in the right of the corporation by reasons of the fact that such person was a director, officer, employee or agent of such corporation, or is or was serving at the request of such corporation as a director, officer, employee or agent of another corporation or enterprise. The indemnity may include expenses (including attorneys’ fees) actually and reasonably incurred by such person in connection with the defense or settlement of such action or suit, provided such person acted in good faith and in a manner he reasonably believed to be in or not opposed to the corporation’s best interests, provided that no indemnification is permitted without judicial approval if the officer, director, employee or agent is adjudged to be liable to the corporation. Where an officer, director, employee or agent is successful on the merits or otherwise in the defense of any action referred to above, the corporation must indemnify him against the expenses which such officer or director has actually and reasonably incurred.

Section 145 further authorizes a corporation to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation or enterprise, against any liability asserted against him and incurred by him in any such capacity, arising out of his status as such, whether or not the corporation would otherwise have the power to indemnify him under Section 145.

CDW Corporation’s amended and restated certificate of incorporation limits, to the maximum extent permitted by Delaware law, the personal liability of directors and officers for monetary damages for breach of their fiduciary duties as a director or officer. CDW Finance Corporation’s certificate of incorporation limits, to the maximum extent permitted by Delaware law, the personal liability of directors for monetary damages for breach of their fiduciary duties as a director. CDW Corporation’s amended and restated bylaws and CDW Finance Corporation’s bylaws provide that directors, officers and employees will be indemnified to the fullest extent authorized by the DGCL with respect to actions, suits or proceedings. CDW Corporation’s amended and restated bylaws and CDW Finance Corporation’s bylaws require CDW Corporation or CDW Finance Corporation, as applicable, to pay all expenses incurred by a director, officer or employee in defending any such proceeding.

SCS Holdings I LLC and Sirius Computer Solutions Financial Services, LLC are each organized under the laws of the State of Delaware.

Section 18-108 of the Delaware Limited Liability Company Act provides that, subject to the standards and restrictions, if any, as are set forth in its limited liability company agreement, a limited liability company may, and shall have the power to, indemnify and hold harmless any member or manager or other person from and against any and all claims and demands whatsoever.

SCS Holdings I LLC and Sirius Computer Solutions Financial Services, LLC’s limited liability company agreements each provide that their respective members shall not have any liability for their respective debts, obligations or liabilities.

Each of SCS Holdings I LLC and Sirius Computer Solutions Financial Services, LLC’s limited liability company agreements allows for each person or entity who was or is, or is threatened to be made a party to or is involved in any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative, arbitrative (a “Proceeding”), or any appeal in such a Proceeding or any inquiry or investigation that could lead to such a Proceeding, by reason of the fact that such person, or a person of whom such person the legal representative, is or was an officer of SCS Holdings I LLC or Sirius Computer Solutions Financial Services, LLC or, while an officer of SCS Holdings I LLC or Sirius Computer Solutions Financial Services, LLC, is or was serving at their request as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust or other enterprise, shall be indemnified to the fullest extent permitted under applicable law against judgments, penalties, fines, settlements and reasonable expenses (including, without

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limitation, reasonable attorneys’ fees) actually incurred by such person in connection with such Proceeding; provided that (a) such person’s course of conduct was pursued in good faith and believed to be the best interests of the Company and (b) such course of conduct did not constitute gross negligence, intentional misconduct, or knowing violation of law.

Each of SCS Holdings I LLC and Sirius Computer Solutions Financial Services, LLC’s limited liability company agreements allows it to purchase and maintain insurance, at its expense, to protect itself and any person who is or was serving as an officer, employee or agent of SCS Holdings I LLC or Sirius Computer Solutions Financial Services, LLC or is or was serving at the request of SCS Holdings I LLC or Sirius Computer Solutions Financial Services, LLC as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other enterprise, against any expense, liability or loss, in each case regardless of whether SCS Holdings I LLC or Sirius Computer Solutions Financial Services, LLC would have the obligation to indemnify such person.

These provisions of each agreement shall continue with respect to a person who has ceased to serve in the capacity which initially entitled such person to indemnity.

Illinois

CDW LLC, CDW Direct, LLC, CDW Government LLC and CDW Logistics LLC are each formed under the laws of the State of Illinois.

Section 15-7 of the Illinois Limited Liability Company Act (“ILLCA”) authorizes a limited liability company to indemnify a member or manager for liabilities incurred by the member or manager in the ordinary course of the business of the company or for the preservation of its business or property.

The limited liability company agreement of each of CDW LLC, CDW Direct, LLC, CDW Government LLC and CDW Logistics LLC provide for indemnification of all current and former managers and officers to the fullest extent of the ILLCA.

Maryland

Sirius Federal, LLC was organized under the laws of the State of Maryland.

Section 203 of the Maryland Limited Liability Company Act provides that, unless otherwise provided by law or its articles of organization, a limited liability company has the general powers, whether or not set forth in its articles of organization, to indemnify and hold harmless any member, agent, or employee from and against any and all claims and demands, except in the case of action or failure to act by the member, agent, or employee which constitutes willful misconduct or recklessness, and subject to the standards and restrictions, if any, set forth in the articles of organization or operating agreement.

The limited liability company agreement provides that each person or entity who was or is made a party or is threatened to be made a party to or is involved in any threatened, pending or completed Proceeding, or any appeal in such a Proceeding or any inquiry or investigation that could lead to such a Proceeding, by reason of the fact such person, or a person of whom such person is the legal representative, is or was an officer of Sirius Federal, LLC or, while an officer of Sirius Federal, LLC, is or was serving at the request of Sirius Federal, LLC as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust or other enterprise, shall be indemnified by Sirius Federal, LLC to the fullest extent permitted under the Maryland Limited Liability Company Act, as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits Sirius Federal, LLC to provide broader

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indemnification rights than said law permitted Sirius Federal, LLC to provide prior to such amendment) against judgments, penalties, fines, settlements and reasonable expenses (including, without limitation, reasonable attorneys’ fees) actually incurred by such person in connection with such Proceeding; provided that (a) such person’s course of conduct was pursued in good faith and believed by such person to be in the best interests of Sirius Federal, LLC and (b) such course of conduct did not constitute gross negligence, intentional misconduct, or knowing violation of law on the part of such person.

Texas

Sirius Computer Solutions, LLC is organized under the laws of Texas.

Section 101.402 of the Texas Business Organizations Code permits a Texas limited liability company to (i) indemnify a person, (ii) pay in advance or reimburse expenses incurred by a person and (iii) purchase or procure or establish and maintain insurance or another arrangement to indemnify or hold harmless a person.

The limited liability company agreement of Sirius Computer Solutions, LLC provides that the entity shall indemnify any person who was or is made a party or is threatened to be made a party or is involved in any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that such person is or was a member or officer of such entity, or is or was a member or officer of the entity serving at the request of the entity as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust or other enterprise shall be indemnified by Sirius Computer Solutions, LLC to the fullest extent permitted by the Texas Business Corporation Act, as the same exist or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits Sirius Computer Solutions, LLC to provide broader indemnification rights than said law permitted Sirius Computer Solutions, LLC to provide prior to such amendment) against judgments, penalties, fines, settlements and reasonable expenses (including, without limitation, reasonable attorneys’ fees) actually incurred by such Person in connection with such Proceeding, provided that (a) such person’s course of conduct was pursued in good faith and believed by such person to be in the best interests of Sirius Computer Solutions, LLC and (b) such course of conduct did not constitute gross negligence, intentional misconduct or knowing violation of law.

Virginia

Amplified IT LLC is organized under the laws of the Commonwealth of Virginia.

Section 13.1-1009(16) of the Virginia Limited Liability Company Act (“VLLCA”) permits a limited liability company to indemnify and hold harmless any member or manager or other person from and against any and all claims and demands whatsoever, and to pay for or reimburse any member or manager or other person for reasonable expenses incurred by such a person who is a party to a proceeding in advance of final disposition of the proceeding.

The operating agreement of Amplified IT LLC provides for indemnification of its officers, or, while an officer, or those serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent, or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trustee or other enterprise to the fullest extent of the VLLCA, provided that such conduct was pursued in good faith and believed to be in the best interests of the company, and such course of conduct did not constitute gross negligence, intentional misconduct, or a knowing violation of the law and otherwise was materially in accordance with the terms of the operating agreement. Such rights are not exclusive or any other rights under the law.

Wisconsin

CDW Technologies LLC is organized under the laws of the State of Wisconsin.

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Section 183.0106(2)(m) of the Wisconsin Limited Liability Company Act (“WLLCA”) permits a limited liability company to indemnify a member, manager, employee, officer or agent or any other person. Section 183.0403(2) of the WLLCA provides that a company shall indemnify or allow reasonable expenses to and pay liabilities of each member and, if management of the limited liability company is vested in one or more managers, of each manager, incurred with respect to a proceeding if that member or manager was a party to the proceeding in the capacity of a member or manager. However, the WLLCA does not permit a limited liability company to indemnify a member or manager for liabilities, or permit a member or manager to retain any allowance for such expenses, unless it is determined by or on behalf of the limited liability company that the liabilities or expenses did not result from the member’s or manager’s breach or failure to perform a duty to the limited liability company.

The operating agreement for CDW Technologies LLC provides for indemnification of all current and former managers and officers to the fullest extent of the WLLCA.

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Item 16. Exhibits.

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Item 17. Undertakings.

(a) Each of the undersigned registrants hereby undertakes:

(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

(i) To include any prospectus required by Section 10(a)(3) of the Securities Act;

(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement; and

(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement; provided, however, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section do not apply if information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to section 13 or section 15(d) of the Exchange Act that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

(2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

(4) That, for the purpose of determining liability under the Securities Act to any purchaser:

(i) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

(ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii) or (x) for the purpose of providing the information required by section 10(a) of the Securities Act of 1933, as amended (the “Securities Act”), shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

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(5) That, for the purpose of determining liability of the registrant under the Securities Act to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

(i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and

(iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

(b) Each of the undersigned registrants hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of such annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(c) If the securities being registered are offered to existing security holders pursuant to warrants or subscription rights and any securities not taken by security holders are to be reoffered to the public, each undersigned registrant hereby undertakes to supplement the prospectus, after the expiration of the subscription period, to set forth the results of the subscription offer, the transactions by the underwriters during the subscription period, the amount of unsubscribed securities to be purchased by the underwriters, and the terms of any subsequent reoffering thereof. If any public offering by the underwriters is to be made on terms differing from those set forth on the cover page of the prospectus or applicable prospectus supplement, a post-effective amendment will be filed to set forth the terms of such offering.

(d) Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the provisions referred to in Item 15, or otherwise, each of the registrants has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by such registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, such registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the undersigned registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Vernon Hills, State of Illinois, on August 2, 2023.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Albert J. Miralles, Chief Financial Officer of the Registrant, and Robert J. Welyki, Treasurer of the Registrant, or any other person holding the position of Chief Financial Officer or Treasurer of the Registrant from time to time, and each of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and revocation, for him or her and in his or her name, place and stead, in any and all capacities, to execute any or all amendments including any post-effective amendments and supplements to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-3 and power of attorney have been signed by the following persons in the capacities and on the dates indicated on August 2, 2023.

Exhibit 3.15

ARTICLES OF ORGANIZATION

OF

AMPLIFIED IT LLC

Pursuant to Chapter 12 of Title 13.1 of the Code of Virginia the undersigned states as follows:

ARTICLE I

The name of the limited liability company is AMPLIFIED IT LLC.

ARTICLE II

The limited liability company’s initial registered agent shall be Tim Lee, who is a resident of Virginia and a member of the limited liability company.

ARTICLE III

The limited liability company’s initial registered office address, which is identical to the business office of the initial registered agent, is 1707 North Main Street, Suffolk, Virginia 23434, which is located in the City of Suffolk.

ARTICLE IV

The limited liability company’s principal office is located at 1707 North Main Street, Suffolk, Virginia 23434, which is located in the City of Suffolk.

ARTICLE IV

The limited liability company shall be managed by at least one (1) manager.

Exhibit 3.16

OPERATING AGREEMENT

OF

AMPLIFIED IT LLC

This OPERATING AGREEMENT (this “Agreement”) of Amplified IT LLC, a Virginia limited liability company (the “Company”), is dated and effective as of the 15th day of March, 2021, by and between the Company and CDW Technologies, LLC, an Illinois limited liability company, as the sole member of the Company (the “Member”).

RECITAL

The Company was organized as a Virginia limited liability company on October 14, 2010, pursuant to the Articles of Organization filed with the Virginia Secretary of State (“VSOS”).

ARTICLE I

The Limited Liability Company

1.1 Formation. The Company was organized as a Virginia limited liability company effective October 14, 2010, pursuant to the Articles of Organization executed and with VSOS in accordance with Section 13.1-1002 of the Virginia Limited Liability Company Act, as amended and in effect from time to time (the “Act”).

1.2 Name. The name of the Company is “Amplified IT LLC” and its business shall be carried on in such name with such variations and changes as the Member shall determine or deem necessary to comply with requirements of the jurisdictions in which the Company’s operations are conducted. Any change in the Company’s name shall be made by the Member in accordance with and pursuant to the Act.

1.3 Business Purpose; Powers. The Company is formed for the purpose of engaging in any lawful purpose or business for which limited liability companies may be formed under the Act. The Company shall have and may exercise all the powers and privileges granted by the Act or by any other law or by this Agreement, together with any powers incidental thereto, so far as such powers are necessary or convenient to effect any or all of the purposes for which the Company is organized.

1.4 Principal Business Office. The principal place of business of the Company shall be located at 812 Granby St., Norfolk, VA 23510, or at such other or additional locations within or without the State of Virginia as the Member, in its discretion, may determine.

1.5 Registered Office and Agent. The location of the registered office of the Company in the State of Virginia is 100 Shockoe Slip, 2nd Floor, Richmond, Virginia 23219. The Company’s Registered Agent at such address is Corporation Service Company. The registered office and/or registered agent of the Company may be changed from time to time at the discretion of the Member.

1.6 Qualification in Other Jurisdictions. The Member shall have authority to cause the Company to do business in jurisdictions other than the State of Virginia.

1.7 Term. Subject to the provisions of Article VII below, the Company shall have perpetual existence.

ARTICLE II

The Member

2.1 The Member. The name and address of the Member is as follows:

2.2 Actions by the Member; Meetings. The Member may approve a matter or take any action at a meeting or without a meeting by the written consent of the Member. Meetings of the Member may be called at any time by the Member.

2.3 Liability of the Member. All debts, obligations and liabilities of the Company, whether arising in contract, tort or otherwise, shall be solely the debts, obligations and liabilities of the Company and the Member shall not be obligated personally for any such debt, obligation or liability of the Company solely by reason of being a member.

2.4 Power to Bind the Company. The Member (acting in its capacity as such) shall have the authority to bind the Company to any third party with respect to any matter.

2.5 Management. The management, operation and policy of the Company shall be vested exclusively in the Member. The Member, acting through its duly authorized agents, is authorized and empowered on behalf and in the name of the Company to perform all acts and engage in all activities and transactions which it may in its sole discretion deem necessary or advisable in order to cause the Company to carry out its purpose and exercise the powers granted to the Company hereunder and under the Act. The Member is an agent of the Company and the actions of the Member in such capacity shall be binding on the Company without liability to the Member.

ARTICLE III

Officers

3.1 Designation of Officers. The Member may, from time to time, designate one or more individuals to be officers of and to act for the Company. No officer need be a resident of the State of Virginia. Any officers so designated shall have such authority and perform such duties as the Member may, from time to time, prescribe or as may be provided in this Agreement, including the power to execute documents on behalf of the Company subject to the limits set forth herein. The Member may assign titles to particular officers. Unless the Member otherwise specifies, if the title is one commonly used for officers of a business corporation, the assignment of such title shall constitute the delegation to such officer of the authority, duties and ability to

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bind the Company that are normally associated with that office under the laws of the State of Virginia, subject to any specific limitations on authority and duties made to such officer by the Member pursuant to this Section 3.1. Each officer shall hold office until his or her successor shall be duly designated and shall qualify or until his or her death or until he or she shall resign or shall have been removed. Any number of offices may be held by the same individual.

3.2 Resignation., Removal. Any officer may resign as such at any time. Such resignation shall be made in writing and shall take effect at the time specified therein, or if no time be specified, at the time of its receipt by the Member. Any officer may be removed as such, either with or without cause, by the Member; provided that such removal shall be without prejudice to the contract rights, if any, of the individual so removed. Designation of an officer shall not of itself create any contract rights, except as otherwise set forth herein. Any vacancy occurring in any office of the Company may be filled by the Member.

3.3 Duties of Officers Generally. Except as otherwise set forth in this Agreement, each officer shall owe to the Company and its Member the same fiduciary duties (including the duties of care and loyalty) that such individuals would owe to a Virginia corporation and its shareholders as an officer thereof.

3.4 Appointed Officers. In addition to officers designated by the Member in accordance with this Article III, the Chief Executive Officer may appoint other officers below the level of Member-appointed Vice President as the Chief Executive Officer may from time to time deem expedient and may designate for such officers titles that appropriately reflect their positions and responsibilities. Such appointed officers shall have such powers and shall perform such duties as may be assigned to them by the Chief Executive Officer or the senior officer to whom they report, consistent with corporate policies. An appointed officer shall serve until the earlier of such officer’s resignation or such officer’s removal by the Chief Executive Officer at any time, either with or without cause.

ARTICLE IV

Capital Structure and Contributions

4.1 Capital Structure and Contributions.

(a) The capital structure of the Company shall consist of one class of common units (the “Common Units”). All Common Units shall be identical with each other in every respect. The Member shall own all of the Common Units issued and outstanding, as set forth on Schedule A attached hereto. The Board may in its discretion issue certificates to the Member representing the Common Units held by such Member. The Member hereby agrees that the Common Units shall be securities governed by the Uniform Commercial Code of the applicable jurisdiction.

(b) The Member shall have the right, at any time and from time to time, to make any optional contributions to the capital of the Company in the form of cash, property, promissory note or services, or any combination thereof.

(c) The Company shall be permitted to incur indebtedness for borrowed money, from the Member or otherwise, with the Member’s consent and approval.

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ARTICLE V

Distributions

5.1 Distributions. The Member shall determine profits available for distribution and the amount, if any, to be distributed to the Member, and shall authorize and distribute to the Member, the determined amount when, as and if declared by the Member. The distributions of the Company shall be distributed entirely to the Member.

ARTICLE VI

Events of Dissolution

The Company shall be dissolved upon the first of the following events to occur:

(a) The consent of the Member at any time to dissolve and wind up the affairs of the Company; or

(b) The occurrence of any other event that causes the dissolution of a limited liability company under the Act.

In the event of any dissolution of the Company, the Member shall be in charge of such dissolution, and the Member shall immediately proceed with an orderly winding up of the Company’s business and affairs and the orderly liquidation of the Company and its assets and make final distributions as provided in the Act; provided, that until all final distributions are made, the Member shall continue to operate the Company. The duties of care and loyalty described in the Act still apply to the Member during the winding up and liquidation period. The costs of liquidation shall be borne as a Company expense. The Member shall not receive any additional compensation for services rendered during the winding up and liquidation of the Company.

Notwithstanding any provisions of the Act or other applicable law, an insolvency event, including a bankruptcy filing, by or against the Company or a Member shall not cause a dissolution of the Company nor shall such an insolvency event, including a bankruptcy filing, by or against a Member effect a deemed assignment, transfer, withdrawal or dissociation of such Member’s interest in the Company or otherwise have any effect whatsoever on such Member’s interest.

ARTICLE VII

Transfer of the Member’s Common Units

The Member may sell, assign, transfer, convey, gift, exchange, pledge or otherwise dispose of any or all of its Common Units and, upon receipt by the Company of a written agreement executed by the person or entity to whom such Common Units are to be transferred agreeing to be bound by the terms of this Agreement as amended from time to time, such person shall be admitted as a member.

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ARTICLE VIII

Exculpation and Indemnification

8.1 Exculpation. No officer of the Company or member of the Board of Directors or Managers (each a “Manager”) or officer of any of its direct or indirect subsidiaries (each a “Subsidiary,” and collectively, “Subsidiaries”) shall be liable to the Company or such Subsidiary, any other officer of the Company or any other officer or Manager of any Subsidiary or to any Member for any loss suffered by the Company or any Subsidiary unless such loss is caused by such officer of the Company’s or such Manager or officer of such Subsidiary’s gross negligence, willful misconduct, knowing violation of law or material breach of this Agreement or any other agreement between the Company or any Subsidiary and such officer of the Company or such Manager or officer of such Subsidiary. No officer of the Company and no Manager or officer of any direct or indirect Subsidiary shall be liable to the Company or such Subsidiary, any other Manager or officer or any Member for errors in judgment or for any acts or omissions that do not constitute gross negligence, intentional misconduct, knowing violation of law or material breach of this Agreement or other agreement with the Company or its Subsidiaries. Any officer of the Company and any Manager or officer of any of its Subsidiaries may consult with the Company’s and such Subsidiary’s counsel and accountants in respect of the Company’s and such Subsidiary’s affairs, and provided such officer of the Company or Manager or officer of such Subsidiary, as the case may be, acts in good faith reliance upon the advice or opinion of such counsel or accountants, such officer of the Company or such Manager or officer of such Subsidiary, as the case may be, shall not be liable for any loss suffered by the Company or such Subsidiary in reliance thereon.

8.2 Right to Indemnification. Subject to the limitations and conditions as provided in this Article VIII, each person or entity (“Person”) who was or is made a party or is threatened to be made a party to or is involved in any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative, arbitrative (hereinafter a “Proceeding”), or any appeal in such a Proceeding or any inquiry or investigation that could lead to such a Proceeding, by reason of the fact that he or she, or a Person of whom he or she is the legal representative, is or was an officer of the Company or, while an officer of the Company, is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust or other enterprise, shall be indemnified by the Company to the fullest extent permitted under applicable law, as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits the Company to provide broader indemnification rights than said law permitted the Company to provide prior to such amendment) against judgments, penalties, fines, settlements and reasonable expenses (including, without limitation, reasonable attorneys’ fees) actually incurred by such Person in connection with such Proceeding; provided that (a) such Person’s course of conduct was pursued in good faith and believed by him to be in the best interests of the Company and (b) such course of conduct did not constitute gross negligence, intentional misconduct, or knowing violation of law on the part of such Person and otherwise was materially in accordance with the terms of this Agreement. Indemnification under this Article VIII shall continue with respect to a Person who has ceased to serve in the capacity which initially entitled such Person to indemnity hereunder. The rights granted pursuant to this Article VIII shall be deemed contractual rights, and no amendment, modification or repeal of this Article VIII shall have the effect of limiting or denying any such rights with respect to actions taken or Proceedings arising prior to any amendment, modification or repeal. It is expressly acknowledged that the indemnification provided in this Article VIII could involve indemnification for negligence other than gross negligence.

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8.3 Advance Payment. The right to indemnification conferred in this Article VIII shall, upon approval by the Member in each instance, include the right to be paid or reimbursed by the Company the reasonable expenses incurred by a Person of the type entitled to be indemnified under Section 8.2 who was, is or is threatened to be made a named defendant or respondent in a Proceeding in advance of the final disposition of the Proceeding and without any determination as to the Person’s ultimate entitlement to indemnification; provided that the payment of such expenses incurred by any such Person in advance of the final disposition of a Proceeding shall be made only upon delivery to the Company of a written affirmation by such Person of his or her good faith belief that he or she has met the standard of conduct necessary for indemnification under Article VIII and a written undertaking, by or on behalf of such Person, to repay all amounts so advanced if it shall ultimately be determined that such indemnified Person is not entitled to be indemnified under this Article VIII or otherwise.

8.4 Indemnification of Employees and Agents. The Company may indemnify and advance expenses to any Person, as determined by the Member, by reason of the fact that such Person was an employee or agent of the Company or is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other enterprise, against any liability asserted against him or her and incurred by him or her in such a capacity or arising out of his or her status as such a Person to the same extent that it shall indemnify and advance expenses to Managers and officers under this Article VIII.

8.5 Appearance as a Witness. Notwithstanding any other provision of this Article VIII, the Company may pay or reimburse reasonable out-of-pocket expenses incurred by a Manager, officer or employee in connection with his or her appearance as a witness or other participation in a Proceeding related to or arising out of the business of the Company at a time when he or she is not a named defendant or respondent in the Proceeding.

8.6 Non-exclusivity of Rights. The right to indemnification and the advancement and payment of expenses conferred in this Article VIII shall not be exclusive of any other right which a Manager, officer or other Person indemnified pursuant to this Article VIII may have or hereafter acquire under any law (common or statutory), any provision of the Articles of Organization or this Agreement, any other separate contractual arrangement, any vote of the Member or disinterested Managers, or otherwise.

8.7 Insurance. The Company may purchase and maintain insurance, at its expense, to protect itself and any Person who is or was serving as an officer, employee or agent of the Company or is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other enterprise, against any expense, liability or loss, whether or not the Company would have the obligation to indemnify such Person against such expense, liability or loss under this Article VIII.

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8.8 Savings Clause. If this Article VIII or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the Company shall nevertheless indemnify and hold harmless each Manager, officer or any other Person indemnified pursuant to this Article VIII as to costs, charges and expenses (including reasonable attorneys’ fees), judgments, fines and amounts paid in settlement with respect to any action, suit or proceeding, whether civil, criminal, administrative or investigative to the fullest extent permitted by any applicable portion of this Article VIII that shall not have been invalidated and to the fullest extent permitted by applicable law.

8.9 Limitation. The exculpation provisions and indemnification obligations set forth in this Article VIII shall not apply to any acts or omissions that occur at or prior to the consummation of the transactions contemplated by that certain Equity Purchase Agreement, dated as of March 15, 2021, by and among CDW Technologies, LLC, a Wisconsin limited liability company, the Company, Chesapeake IT, Inc., a Delaware corporation, and Timothy Lee, an individual resident of the Commonwealth of Virginia.

ARTICLE IX

Miscellaneous

9.1 Tax Treatment. The Company shall be taxed as a disregarded entity for U.S. federal income tax purposes (as well as for any analogous state or local tax purposes), and the Member and the Company shall timely make any and all necessary elections and filings for the Company treated as a disregarded entity for U.S. federal income tax purposes (as well as for any analogous state or local tax purposes).

9.2 Amendments. Amendments to this Agreement and to the Articles of Organization shall be approved in writing by the Member. An amendment shall become effective as of the date specified in the approval of the Member or if none is specified as of the date of such approval or as otherwise provided in the Act.

9.3 Severability. If any provision of this Agreement is held to be invalid or unenforceable for any reason, such provision shall be ineffective to the extent of such invalidity or unenforceability; provided, however, that the remaining provisions will continue in full force without being impaired or invalidated in any way unless such invalid or unenforceable provision or clause shall be so significant as to materially affect the expectations of the Member regarding this Agreement. Otherwise, any invalid or unenforceable provision shall be replaced by the Member with a valid provision which most closely approximates the intent and economic effect of the invalid or unenforceable provision.

9.4 Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware without regard to the principles of conflicts of laws thereof.

9.5 Limited Liability Company. The Member intends to form a limited liability company and does not intend to form a partnership under the laws of the State of Virginia or any other laws.

9.6 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall be deemed to be an original, but all of which together shall constitute one and the instrument.

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IN WITNESS WHEREOF, the undersigned has duly executed this Operating Agreement as of the day first above written.

SCHEDULE A

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Exhibit 3.17

STATE OF DELAWARE

CERTIFICATE OF CONVERSION

FROM A DELAWARE CORPORATION TO A

DELAWARE LIMITED LIABILITY COMPANY

PURSUANT TO SECTION 18-214 OF THE

DELAWARE LIMITED LIABILITY COMPANY ACT

December 22, 2021

* * * * * * *

IN WITNESS WHEREOF, the undersigned has executed this Certificate of Conversion as of the date first set forth above.

CERTIFICATE OF FORMATION

OF

SCS HOLDINGS I LLC

December 22, 2021

The undersigned authorized person, desiring to form a limited liability company pursuant to the Limited Liability Company Act of the State of Delaware, hereby certifies as follows:

* * * * * *

IN WITNESS WHEREOF, the undersigned has executed this Certificate of Formation as of the date first above written.

Exhibit 3.18

EXECUTION VERSION

LIMITED LIABILITY COMPANY AGREEMENT

OF

SCS HOLDINGS I LLC

This LIMITED LIABILITY COMPANY AGREEMENT (this “Agreement”) of SCS HOLDINGS I LLC, a Delaware limited liability company (the “Company”), is dated and effective as of the 22nd day of December, 2021, by and between the Company and CDW LLC, an Illinois limited liability company, as the sole member of the Company (the “Member”).

RECITAL

The Company was organized as a Delaware limited liability company on December 22, 2021, pursuant to the Certificate of Formation filed with the Delaware Secretary of State (“DSOS”).

ARTICLE I

The Limited Liability Company

1.1 Formation. The Company was organized as a Delaware limited liability company effective December 22, 2021, pursuant to the Certificate of Formation executed and with DSOS in accordance with Section 18-201 of the Delaware Limited Liability Company Act, as amended and in effect from time to time (the “Act”).

1.2 Name. The name of the Company is “SCS HOLDINGS I LLC” and its business shall be carried on in such name with such variations and changes as the Member shall determine or deem necessary to comply with requirements of the jurisdictions in which the Company’s operations are conducted. Any change in the Company’s name shall be made by the Member in accordance with and pursuant to the Act.

1.3 Business Purpose; Powers. The Company is formed for the purpose of engaging in any lawful purpose or business for which limited liability companies may be formed under the Act. The Company shall have and may exercise all the powers and privileges granted by the Act or by any other law or by this Agreement, together with any powers incidental thereto, so far as such powers are necessary or convenient to effect any or all of the purposes for which the Company is organized.

1.4 Principal Business Office. The principal place of business of the Company shall be located at 10100 Reunion Place, Suite 500, San Antonio, Texas 78216, or at such other or additional locations within or without the State of Delaware as the Member, in its discretion, may determine.

1.5 Registered Office and Agent. The location of the registered office of the Company in the State of Delaware is 251 Little Falls Drive, Wilmington, Delaware 19808. The Company’s Registered Agent at such address is Corporation Service Company. The registered office and/or registered agent of the Company may be changed from time to time at the discretion of the Member.

1.6 Qualification in Other Jurisdictions. The Member shall have authority to cause the Company to do business in jurisdictions other than the State of Delaware.

1.7 Term. Subject to the provisions of Article VII below, the Company shall have perpetual existence.

ARTICLE II

The Member

2.1 The Member. The name and address of the Member is as follows:

2.2 Actions by the Member; Meetings. The Member may approve a matter or take any action at a meeting or without a meeting by the written consent of the Member. Meetings of the Member may be called at any time by the Member.

2.3 Liability of the Member. All debts, obligations and liabilities of the Company, whether arising in contract, tort or otherwise, shall be solely the debts, obligations and liabilities of the Company and the Member shall not be obligated personally for any such debt, obligation or liability of the Company solely by reason of being a member.

2.4 Power to Bind the Company. The Member (acting in its capacity as such) shall have the authority to bind the Company to any third party with respect to any matter.

2.5 Management. The management, operation and policy of the Company shall be vested exclusively in the Member. The Member, acting through its duly authorized agents, is authorized and empowered on behalf and in the name of the Company to perform all acts and engage in all activities and transactions which it may in its sole discretion deem necessary or advisable in order to cause the Company to carry out its purpose and exercise the powers granted to the Company hereunder and under the Act. The Member is an agent of the Company and the actions of the Member in such capacity shall be binding on the Company without liability to the Member.

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ARTICLE III

Officers

3.1 Designation of Officers. The Member may, from time to time, designate one or more individuals to be officers of and to act for the Company. No officer need be a resident of the State of Delaware. Any officers so designated shall have such authority and perform such duties as the Member may, from time to time, prescribe or as may be provided in this Agreement, including the power to execute documents on behalf of the Company subject to the limits set forth herein. The Member may assign titles to particular officers. Unless the Member otherwise specifies, if the title is one commonly used for officers of a business corporation, the assignment of such title shall constitute the delegation to such officer of the authority, duties and ability to bind the Company that are normally associated with that office under the laws of the State of Delaware, subject to any specific limitations on authority and duties made to such officer by the Member pursuant to this Section 3.1. Each officer shall hold office until his or her successor shall be duly designated and shall qualify or until his or her death or until he or she shall resign or shall have been removed. Any number of offices may be held by the same individual.

3.2 Resignation; Removal. Any officer may resign as such at any time. Such resignation shall be made in writing and shall take effect at the time specified therein, or if no time be specified, at the time of its receipt by the Member. Any officer may be removed as such, either with or without cause, by the Member; provided that such removal shall be without prejudice to the contract rights, if any, of the individual so removed. Designation of an officer shall not of itself create any contract rights, except as otherwise set forth herein. Any vacancy occurring in any office of the Company may be filled by the Member.

3.3 Duties of Officers Generally. Except as otherwise set forth in this Agreement, each officer shall owe to the Company and its Member the same fiduciary duties (including the duties of care and loyalty) that such individuals would owe to a Delaware corporation and its shareholders as an officer thereof.

3.4 Appointed Officers. In addition to officers designated by the Member in accordance with this Article III, the President may appoint other officers below the level of Member-appointed Vice President as the President may from time to time deem expedient and may designate for such officers titles that appropriately reflect their positions and responsibilities. Such appointed officers shall have such powers and shall perform such duties as may be assigned to them by the President or the senior officer to whom they report, consistent with corporate policies. An appointed officer shall serve until the earlier of such officer’s resignation or such officer’s removal by the President at any time, either with or without cause.

ARTICLE IV

Capital Structure and Contributions

4.1 Capital Structure and Contributions.

(a) The capital structure of the Company shall consist of one class of common units (the “Common Units”). All Common Units shall be identical with each other in every respect. The Member shall own all of the Common Units issued and outstanding, as set forth on Schedule A attached hereto. The Company may in its discretion issue certificates to the Member representing the Common Units held by such Member. The Member hereby agrees that the Common Units shall be securities governed by the Uniform Commercial Code of the applicable jurisdiction.

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(b) The Member shall have the right, at any time and from time to time, to make any optional contributions to the capital of the Company in the form of cash, property, promissory note or services, or any combination thereof.

(c) The Company shall be permitted to incur indebtedness for borrowed money, from the Member or otherwise, with the Member’s consent and approval.

ARTICLE V

Distributions

5.1 Distributions. The Member shall determine profits available for distribution and the amount, if any, to be distributed to the Member, and shall authorize and distribute to the Member, the determined amount when, as and if declared by the Member. The distributions of the Company shall be distributed entirely to the Member.

ARTICLE VI

Events of Dissolution

The Company shall be dissolved upon the first of the following events to occur:

(a) The consent of the Member at any time to dissolve and wind up the affairs of the Company; or

(b) The occurrence of any other event that causes the dissolution of a limited liability company under the Act.

In the event of any dissolution of the Company, the Member shall be in charge of such dissolution, and the Member shall immediately proceed with an orderly winding up of the Company’s business and affairs and the orderly liquidation of the Company and its assets and make final distributions as provided in the Act; provided, that until all final distributions are made, the Member shall continue to operate the Company. The duties of care and loyalty described in the Act still apply to the Member during the winding up and liquidation period. The costs of liquidation shall be borne as a Company expense. The Member shall not receive any additional compensation for services rendered during the winding up and liquidation of the Company.

Notwithstanding any provisions of the Act or other applicable law, an insolvency event, including a bankruptcy filing, by or against the Company or a Member shall not cause a dissolution of the Company nor shall such an insolvency event, including a bankruptcy filing, by or against a Member effect a deemed assignment, transfer, withdrawal or dissociation of such Member’s interest in the Company or otherwise have any effect whatsoever on such Member’s interest.

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ARTICLE VII

Transfer of the Member’s Common Units

The Member may sell, assign, transfer, convey, gift, exchange, pledge or otherwise dispose of any or all of its Common Units and, upon receipt by the Company of a written agreement executed by the person or entity to whom such Common Units are to be transferred agreeing to be bound by the terms of this Agreement as amended from time to time, such person shall be admitted as a member.

ARTICLE VIII

Exculpation and Indemnification

8.1 Exculpation. No officer of the Company or member of the Board of Directors or Managers (each a “Manager”) or officer of any of its direct or indirect subsidiaries (each a “Subsidiary,” and collectively, “Subsidiaries”) shall be liable to the Company or such Subsidiary, any other officer of the Company or any other officer or Manager of any Subsidiary or to any Member for any loss suffered by the Company or any Subsidiary unless such loss is caused by such officer of the Company’s or such Manager or officer of such Subsidiary’s gross negligence, willful misconduct, knowing violation of law or material breach of this Agreement or any other agreement between the Company or any Subsidiary and such officer of the Company or such Manager or officer of such Subsidiary. No officer of the Company and no Manager or officer of any direct or indirect Subsidiary shall be liable to the Company or such Subsidiary, any other Manager or officer or any Member for errors in judgment or for any acts or omissions that do not constitute gross negligence, intentional misconduct, knowing violation of law or material breach of this Agreement or other agreement with the Company or its Subsidiaries. Any officer of the Company and any Manager or officer of any of its Subsidiaries may consult with the Company’s and such Subsidiary’s counsel and accountants in respect of the Company’s and such Subsidiary’s affairs, and provided such officer of the Company or Manager or officer of such Subsidiary, as the case may be, acts in good faith reliance upon the advice or opinion of such counsel or accountants, such officer of the Company or such Manager or officer of such Subsidiary, as the case may be, shall not be liable for any loss suffered by the Company or such Subsidiary in reliance thereon.

8.2 Right to Indemnification. Subject to the limitations and conditions as provided in this Article VIII, each person or entity (“Person”) who was or is made a party or is threatened to be made a party to or is involved in any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative, arbitrative (hereinafter a “Proceeding”), or any appeal in such a Proceeding or any inquiry or investigation that could lead to such a Proceeding, by reason of the fact that he or she, or a Person of whom he or she is the legal representative, is or was an officer of the Company or, while an officer of the Company, is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust or other enterprise, shall be indemnified by the Company to the fullest extent permitted under applicable law, as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits the Company to provide broader indemnification rights than said law permitted the Company to provide prior to such amendment) against judgments, penalties,

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fines, settlements and reasonable expenses (including, without limitation, reasonable attorneys’ fees) actually incurred by such Person in connection with such Proceeding; provided that (a) such Person’s course of conduct was pursued in good faith and believed by him to be in the best interests of the Company and (b) such course of conduct did not constitute gross negligence, intentional misconduct, or knowing violation of law on the part of such Person and otherwise was materially in accordance with the terms of this Agreement. Indemnification under this Article VIII shall continue with respect to a Person who has ceased to serve in the capacity which initially entitled such Person to indemnity hereunder. The rights granted pursuant to this Article VIII shall be deemed contractual rights, and no amendment, modification or repeal of this Article VIII shall have the effect of limiting or denying any such rights with respect to actions taken or Proceedings arising prior to any amendment, modification or repeal. It is expressly acknowledged that the indemnification provided in this Article VIII could involve indemnification for negligence other than gross negligence.

8.3 Advance Payment. The right to indemnification conferred in this Article VIII shall, upon approval by the Member in each instance, include the right to be paid or reimbursed by the Company the reasonable expenses incurred by a Person of the type entitled to be indemnified under Section 8.2 who was, is or is threatened to be made a named defendant or respondent in a Proceeding in advance of the final disposition of the Proceeding and without any determination as to the Person’s ultimate entitlement to indemnification; provided that the payment of such expenses incurred by any such Person in advance of the final disposition of a Proceeding shall be made only upon delivery to the Company of a written affirmation by such Person of his or her good faith belief that he or she has met the standard of conduct necessary for indemnification under Article VIII and a written undertaking, by or on behalf of such Person, to repay all amounts so advanced if it shall ultimately be determined that such indemnified Person is not entitled to be indemnified under this Article VIII or otherwise.

8.4 Indemnification of Employees and Agents. The Company may indemnify and advance expenses to any Person, as determined by the Member, by reason of the fact that such Person was an employee or agent of the Company or is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other enterprise, against any liability asserted against him or her and incurred by him or her in such a capacity or arising out of his or her status as such a Person to the same extent that it shall indemnify and advance expenses to Managers and officers under this Article VIII.

8.5 Appearance as a Witness. Notwithstanding any other provision of this Article VIII, the Company may pay or reimburse reasonable out-of-pocket expenses incurred by a Manager, officer or employee in connection with his or her appearance as a witness or other participation in a Proceeding related to or arising out of the business of the Company at a time when he or she is not a named defendant or respondent in the Proceeding.

8.6 Non-exclusivity of Rights. The right to indemnification and the advancement and payment of expenses conferred in this Article VIII shall not be exclusive of any other right which a Manager, officer or other Person indemnified pursuant to this Article VIII may have or hereafter acquire under any law (common or statutory), any provision of the Certificate of Formation or this Agreement, any other separate contractual arrangement, any vote of the Member or disinterested Managers, or otherwise.

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8.7 Insurance. The Company may purchase and maintain insurance, at its expense, to protect itself and any Person who is or was serving as an officer, employee or agent of the Company or is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other enterprise, against any expense, liability or loss, whether or not the Company would have the obligation to indemnify such Person against such expense, liability or loss under this Article VIII.

8.8 Savings Clause. If this Article VIII or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the Company shall nevertheless indemnify and hold harmless each Manager, officer or any other Person indemnified pursuant to this Article VIII as to costs, charges and expenses (including reasonable attorneys’ fees), judgments, fines and amounts paid in settlement with respect to any action, suit or proceeding, whether civil, criminal, administrative or investigative to the fullest extent permitted by any applicable portion of this Article VIII that shall not have been invalidated and to the fullest extent permitted by applicable law.

8.9 Limitation. The exculpation provisions and indemnification obligations set forth in this Article VIII shall not apply to any acts or omissions that occur at or prior to the consummation of the transactions contemplated by that certain Purchase and Sale Agreement, dated as of October 15, 2021, by and between CDW LLC, an Illinois limited liability company, and Sirius Computer Solutions Holdco, LP, a Delaware limited partnership.

ARTICLE IX

Miscellaneous

9.1 Tax Treatment. The Company shall be taxed as a disregarded entity for U.S. federal income tax purposes (as well as for any analogous state or local tax purposes), and the Member and the Company shall timely make any and all necessary elections and filings for the Company treated as a disregarded entity for U.S. federal income tax purposes (as well as for any analogous state or local tax purposes).

9.2 Amendments. Amendments to this Agreement and to the Certificate of Formation shall be approved in writing by the Member. An amendment shall become effective as of the date specified in the approval of the Member or if none is specified as of the date of such approval or as otherwise provided in the Act.

9.3 Severability. If any provision of this Agreement is held to be invalid or unenforceable for any reason, such provision shall be ineffective to the extent of such invalidity or unenforceability; provided, however, that the remaining provisions will continue in full force without being impaired or invalidated in any way unless such invalid or unenforceable provision or clause shall be so significant as to materially affect the expectations of the Member regarding this Agreement. Otherwise, any invalid or unenforceable provision shall be replaced by the Member with a valid provision which most closely approximates the intent and economic effect of the invalid or unenforceable provision.

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9.4 Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware without regard to the principles of conflicts of laws thereof.

9.5 Limited Liability Company. The Member intends to form a limited liability company and does not intend to form a partnership under the laws of the State of Delaware or any other laws.

9.6 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall be deemed to be an original, but all of which together shall constitute one and the instrument.

[Signature page follows]

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IN WITNESS WHEREOF, the undersigned have duly executed this Limited Liability Company Agreement as of the day first above written.

[Signature Page to SCS Holdings I LLC Limited Liability Company Agreement]

SCHEDULE A

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Exhibit 3.19

Converting Entity Information

Certificate of Formation for the Converted Entity

☑ The converted entity is a Texas limited liability company. The certificate of formation of the Texas limited liability company is attached to this certificate either as an attachment or exhibit to the plan of conversion, or as an attachment or exhibit to this certificate of conversion if the plan has not been attached to the certificate of conversion.

Approval of the Plan of Conversion

The plan of conversion has been approved as required by the laws of the jurisdiction of formation and the governing documents of the converting entity.

Effectiveness of Filing (Select either A, B, or C.)

A. ☑ This document becomes effective when the document is accepted and filed by the secretary of state.

B. ☐ This document becomes effective at a later date, which is not more than ninety (90) days from the date of signing. The delayed effective date is:                                              

C. ☐ This document takes effect upon the occurrence of the future event or fact, other than the passage of time. The 90^th day after the date of signing is:                                              

The following event or fact will cause the document to take effect in the manner described below:

Tax Certificate

Execution

The undersigned signs this document subject to the penalties imposed by law for the submission of a materially false or fraudulent instrument.

EXECUTION VERSION

PLAN OF CONVERSION

OF

SIRIUS COMPUTER SOLUTIONS, INC., A TEXAS CORPORATION

INTO

SIRIUS COMPUTER SOLUTIONS, LLC, A TEXAS LIMITED LIABILITY COMPANY

This Plan of Conversion (the “Plan of Conversion”) is adopted as of December 28, 2021 to convert Sirius Computer Solutions, Inc., a Texas corporation (the “Converting Entity”), into a Texas limited liability company to be known as “Sirius Computer Solutions, LLC” (the “Converted Entity”).

[Signature page follows.]

IN WITNESS WHEREOF, the undersigned has executed this Plan of Conversion as of the first date written above.

[Signature Page to Plan of Conversion of Sirius Computer Solutions, Inc. into Sirius Computer Solutions, LLC]

Exhibit A

Certificate of Formation

Article 1 - Entity Name and Type

The filing entity being formed is a limited liability company. The name of the entity is:

Sirius Computer Solutions, LLC

The name must contain the words “limited liability company,” “limited company,” or an abbreviation of one of these phrases.

Article 2 - Registered Agent and Registered Office

(See instructions. Select and complete either A or B and complete C.)

☑ A. The initial registered agent is an organization (cannot be entity named above) by the name of:

Corporation Service Company d/b/a CSC-Lawyers Incorporating Service Company

OR

☐ B. The initial registered agent is an individual resident of the state whose name is set forth below:

C. The business address of the registered agent and the registered office address is:

Article 3—Governing Authority

(Select and complete either A or B and provide the name and address of each governing person.)

☑ A. The limited liability company will have managers. The name and address of each initial manager are set forth below.

☐ B. The limited liability company will not have managers. The company will be governed by its members, and the name and address of each initial member are set forth below.

Article 4 - Purpose

The purpose for which the company is formed is for the transaction of any and all lawful purposes for which a limited liability company may be organized under the Texas Business Organizations Code.

Supplemental Provisions/Information

Text Area: [The attached addendum, if any, is incorporated herein by reference.]

Organizer

The name and address of the organizer:

Effectiveness Of Filing (Select either A, B, or C.)

A. ☑ This document becomes effective when the document is filed by the secretary of state.

B. ☐ This document becomes effective at a later date, which is not more than ninety (90) days from the date of signing. The delayed effective date is:                                                              

C. ☐ This document takes effect upon the occurrence of the future event or fact, other than the passage of time. The 90^th day after the date of signing is:                                                             

The following event or fact will cause the document to take effect in the manner described below:

Execution

The undersigned affirms that the person designated as registered agent has consented to the appointment. The undersigned signs this document subject to the penalties imposed by law for the submission of a materially false or fraudulent instrument and certifies under penalty of perjury that the undersigned is authorized to execute the filing instrument.

Exhibit 3.20

EXECUTION VERSION

LIMITED LIABILITY COMPANY AGREEMENT

OF

SIRIUS COMPUTER SOLUTIONS, LLC

This LIMITED LIABILITY COMPANY AGREEMENT (this “Agreement”) of Sirius Computer Solutions, LLC (the “Company”) is dated and effective as of the 28th day of December, 2021, by SCS HOLDINGS I LLC, a Delaware limited liability company, as the sole member (the “Member”) of the Company.

RECITAL

The Company was formed by the Member as a limited liability company under the laws of the State of Texas on December 28, 2021.

ARTICLE I

The Limited Liability Company

1.1 Formation. The Company was formed on December 28, 2021, upon the execution and filing of the Certificate of Formation (“Certificate of Formation”) with the Secretary of State of the State of Texas in accordance with the provisions of the Texas Business Organizations Code, as amended (the “TBOC”).

1.2 Name. The name of the Company is “Sirius Computer Solutions, LLC” and its business shall be carried on in such name with such variations and changes as the Board (as hereinafter defined) shall determine or deem necessary to comply with requirements of the jurisdictions in which the Company’s operations are conducted. Any change in the Company’s name shall be made by the Member in accordance with and pursuant to the TBOC.

1.3 Business Purpose; Powers. The Company is formed for the purpose of engaging in any lawful purpose or business for which limited liability companies may be formed under the TBOC. The Company shall have and may exercise all the powers and privileges granted by the TBOC or by any other law or by this Agreement, together with any powers incidental thereto, so far as such powers are necessary or convenient to effect any or all of the purposes for which the Company is organized.

1.4 Principal Business Office. The principal place of business of the Company shall be located at 10100 Reunion Place, Suite 500, San Antonio, Texas 78216, or at such other or additional locations within the State of Texas as the Board, in its discretion, may determine.

1.5 Registered Office and Agent. The location of the registered office of the Company in the State of Texas is 211 East 7th Street, Suite 620, Austin, Texas, 78701-3218. The Company’s Registered Agent at such address is Corporation Service Company d/b/a CSC-Lawyers Incorporating Service Company. The registered office and/or registered agent of the Company may be changed from time to time at the discretion of the Board.

1.6 Qualification in Other Jurisdictions. The Member shall have authority to cause the Company to do business in jurisdictions other than the State of Texas.

1.7 Term. Subject to the provisions of Article VII below, the Company shall have perpetual existence.

ARTICLE II

The Member

2.1 The Member. The name and address of the Member is as follows:

2.2 Actions by the Member; Meetings. The Member may approve a matter or take any action at a meeting or without a meeting by the written consent of the Member. Meetings of the Member may be called at any time by the Member. The general management of the Company will rest with the Board (as hereinafter defined), and the Member will only approve a matter or take any action on such items for which the Member’s approval is required under the TBOC.

2.3 Liability of the Member. All debts, obligations and liabilities of the Company, whether arising in contract, tort or otherwise, shall be solely the debts, obligations and liabilities of the Company and the Member shall not be obligated personally for any such debt, obligation or liability of the Company solely by reason of being a member.

2.4 Power to Bind the Company. Subject to Section 3.1 below, the Member (acting in its capacity as such) shall have the authority to bind the Company to any third party with respect to any matter.

ARTICLE III

The Board

3.1 Management by Board of Managers.

(a) Subject to such matters which are expressly reserved hereunder or under the TBOC to the Member for decision, the business and affairs of the Company shall be managed by a board of managers (the “Board”), which shall be responsible for policy setting, approving the overall direction of the Company and making all decisions affecting the business and affairs of the Company. The Board shall be initially comprised of one person and shall thereafter be comprised of such size to be determined from time to time by the Member (each, a “Manager”).

(b) Each Manager shall be elected by the Member and shall serve until his or her successor has been duly elected and qualified, or until his or her earlier removal, resignation, death or disability. The Member may remove any Manager from the Board or from any other capacity with the Company at any time, with or without cause. A Manager may resign at any time upon written notice to the Member.

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(c) Any vacancy occurring on the Board as a result of the resignation, removal, death or disability of a Manager or an increase in the size of the Board may be filled by the Member.

3.2 Action by the Board.

(a) Meetings of the Board may be called by any Manager upon two (2) days prior written notice, either personally, by telephone, by mail, by e-mail or by facsimile to each Manager. If notice is delivered by any means, such notice shall be deemed to be received when delivered. The presence of a majority of the Managers then in office shall constitute a quorum at any meeting of the Board. All actions of the Board shall require the affirmative vote of a majority of the Managers then in office.

(b) Notice of any meeting may be waived by any Manager. The attendance of a Manager at any meeting shall constitute a waiver of notice of such meeting, except where a Manager attends a meeting for the express purpose of objecting to the transaction of any business because the meeting is not lawfully called or convened. Neither the business to be transacted at, nor the purpose of, any regular or special meeting of the Managers need be specified in the notice or waiver of notice of such meeting.

(c) Meetings of the Board may be conducted in person or by conference telephone facilities. Any action required or permitted to be taken at any meeting of the Board or any committee thereof may be taken without a meeting if consented thereto in writing setting forth the action so taken and signed by all of the Managers.

(d) At any meeting of the Board, a Manager may vote by proxy executed in writing by such Manager in favor of another Manager.

(e) The Company shall pay the reasonable out-of-pocket travel expenses incurred by each Manager in connection with attending such meetings and any meetings of committees of the Board. Upon approval by the Board, the Company may agree to pay reasonable fees to any or all of the Managers.

(f) If all of the Managers meet at any time and place (including telephonically) and consent to the holding of a meeting at such time and place, such meeting shall be valid without call or notice, and any Company action which may be taken at a meeting of the Board may be taken at such meeting.

3.3 Power to Bind Company. None of the Managers (acting in their capacity as such) shall have authority to bind the Company to any third party with respect to any matter (including, without limitation, transferring or affecting the Company’s interest in real property) unless the Board shall have approved such matter and authorized such Manager(s) to bind the Company with respect thereto.

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3.4 Duties of the Managers. Except as otherwise set forth in this Agreement, each Manager shall owe the same fiduciary duties to the Company and its Member that such individual would owe to a Texas corporation and its shareholders as a member of the board of directors of such Texas corporation; provided that, to the maximum extent permitted by the TBOC, such duties shall not include any requirement that the Company be offered an opportunity to participate in any business opportunity that is presented to any Manager.

3.5 Committees. The Board may, from time to time, designate one or more committees, each of which shall include at least two (2) Managers. Any such committee, to the extent provided in the enabling resolution, shall have and may exercise all or any of the authority of the Board. At every meeting of any such committee, the presence of a majority of all the members thereof shall constitute a quorum, and the affirmative vote of a majority of the members present shall be necessary for the adoption of any resolution. The Board may dissolve any committee at any time.

ARTICLE IV

Officers

4.1 Designation of Officers. The Board may, from time to time, designate one or more individuals to be officers of and to act for the Company. No officer need be a resident of the State of Texas. Any officers so designated shall have such authority and perform such duties as the Board may, from time to time, prescribe or as may be provided in this Agreement, including the power to execute documents on behalf of the Company subject to the limits set forth herein. The Board may assign titles to particular officers. Unless the Board otherwise specifies, if the title is one commonly used for officers of a business corporation, the assignment of such title shall constitute the delegation to such officer of the authority, duties and ability to bind the Company that are normally associated with that office under the laws of the State of Texas, subject to any specific limitations on authority and duties made to such officer by the Board pursuant to this Section 4.1. Each officer shall hold office until his or her successor shall be duly designated and shall qualify or until his or her death or until he or she shall resign or shall have been removed. Any number of offices may be held by the same individual.

4.2 Resignation; Removal. Any officer may resign as such at any time. Such resignation shall be made in writing and shall take effect at the time specified therein, or if no time be specified, at the time of its receipt by the Board. Any officer may be removed as such, either with or without cause, by the Board; provided that such removal shall be without prejudice to the contract rights, if any, of the individual so removed. Designation of an officer shall not of itself create any contract rights, except as otherwise set forth herein. Any vacancy occurring in any office of the Company may be filled by the Board.

4.3 Duties of Officers Generally. Except as otherwise set forth in this Agreement, each officer shall owe to the Company and its Member the same fiduciary duties (including the duties of care and loyalty) that such individuals would owe to a Texas corporation and its shareholders as an officer thereof.

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4.4 Appointed Officers. In addition to officers designated by the Board in accordance with this Article IV, the Chairman of the Board may appoint other officers below the level of Board-appointed Vice President as the Chairman of the Board may from time to time deem expedient and may designate for such officers titles that appropriately reflect their positions and responsibilities. Such appointed officers shall have such powers and shall perform such duties as may be assigned to them by the Chairman of the Board or the senior officer to whom they report, consistent with corporate policies. An appointed officer shall serve until the earlier of such officer’s resignation or such officer’s removal by the Chairman of the Board at any time, either with or without cause.

ARTICLE V

Capital Structure and Contributions

5.1 Capital Structure. The capital structure of the Company shall consist of one class of common units (the “Common Units”). All Common Units shall be identical with each other in every respect. The Member shall own all of the Common Units issued and outstanding, as set forth on Schedule A attached hereto. The Board may in its discretion issue certificates to the Member representing the Common Units held by such Member. The Member hereby agrees that the Common Units shall be securities governed by the Uniform Commercial Code of the State of Texas (and Uniform Commercial Code of any other applicable jurisdiction.)

5.2 Capital Contributions. From time to time, the Board may determine that the Company requires capital and may request the Member to make capital contribution(s) in an amount determined by the Board; provided, however, that the Member is not required to make such capital contribution(s).

ARTICLE VI

Distributions

6.1 Distributions. The Board shall determine profits available for distribution and the amount, if any, to be distributed to the Member, and shall authorize and distribute to the Member, the determined amount when, as and if declared by the Board. The distributions of the Company shall be distributed entirely to the Member.

ARTICLE VII

Events of Dissolution

The Company shall be dissolved upon the first of the following events to occur:

(a) The consent of the Member at any time to dissolve and wind up the affairs of the Company; or

(b) The occurrence of any other event that causes the dissolution of a limited liability company under the TBOC.

In the event of any dissolution of the Company, the Member shall be in charge of such dissolution, and the Member shall immediately proceed with an orderly winding up of the Company’s business and affairs and the orderly liquidation of the Company and its assets and make final distributions as provided in the TBOC; provided, that until all final distributions are

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made, the Member shall continue to operate the Company with all power and authority of the Board. The duties of care and loyalty described in the TBOC still apply to the Member during the winding up and liquidation period. The costs of liquidation shall be borne as a Company expense. The Member shall not receive any additional compensation for services rendered during the winding up and liquidation of the Company.

Notwithstanding any provisions of the TBOC or other applicable law, an insolvency event, including a bankruptcy filing, by or against the Company or a Member shall not cause a dissolution of the Company nor shall such an insolvency event, including a bankruptcy filing, by or against a Member effect a deemed assignment, transfer, withdrawal or dissociation of such Member’s interest in the Company or otherwise have any effect whatsoever on such Member’s interest.

ARTICLE VIII

Transfer of the Member’s Common Units

The Member may sell, assign, transfer, convey, gift, exchange, pledge or otherwise dispose of any or all of its Common Units and, upon receipt by the Company of a written agreement executed by the person or entity to whom such Common Units are to be transferred agreeing to be bound by the terms of this Agreement as amended from time to time, such person shall be admitted as a member.

ARTICLE IX

Exculpation and Indemnification

9.1 Exculpation. No Manager or officer of the Company or any of its direct or indirect subsidiaries (each a “Subsidiary,” and collectively, “Subsidiaries”) shall be liable to the Company or such Subsidiary, any other Manager, any other officer of the Company or any Subsidiary or to any Member for any loss suffered by the Company or any Subsidiary unless such loss is caused by such Manager’s or such officer of the Company’s or such Subsidiary’s gross negligence, willful misconduct, knowing violation of law or material breach of this Agreement or any other agreement between the Company or any Subsidiary and such Manager or officer of the Company or such Subsidiary. No Manager or officer of the Company or any direct or indirect Subsidiary shall be liable to the Company or such Subsidiary, any other Manager or officer or any Member for errors in judgment or for any acts or omissions that do not constitute gross negligence, intentional misconduct, knowing violation of law or material breach of this Agreement or other agreement with the Company or its Subsidiaries. Any Manager and any officer of the Company and any of its Subsidiaries may consult with the Company’s and such Subsidiary’s counsel and accountants in respect of the Company’s and such Subsidiary’s affairs, and provided such Manager or officer of the Company or such Subsidiary, as the case may be, acts in good faith reliance upon the advice or opinion of such counsel or accountants, such Manager or such officer of the Company or such Subsidiary, as the case may be, shall not be liable for any loss suffered by the Company or such Subsidiary in reliance thereon.

9.2 Right to Indemnification. Subject to the limitations and conditions as provided in this Article IX, each person or entity (“Person”) who was or is made a party or is threatened to be made a party to or is involved in any threatened, pending or completed action, suit or proceeding,

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whether civil, criminal, administrative, arbitrative (hereinafter a “Proceeding”), or any appeal in such a Proceeding or any inquiry or investigation that could lead to such a Proceeding, by reason of the fact that he or she, or a Person of whom he or she is the legal representative, is or was an officer or Manager of the Company or, while an officer or Manager of the Company, is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust or other enterprise, shall be indemnified by the Company to the fullest extent permitted under applicable law, as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits the Company to provide broader indemnification rights than said law permitted the Company to provide prior to such amendment) against judgments, penalties, fines, settlements and reasonable expenses (including, without limitation, reasonable attorneys’ fees) actually incurred by such Person in connection with such Proceeding; provided that (a) such Person’s course of conduct was pursued in good faith and believed by him to be in the best interests of the Company and (b) such course of conduct did not constitute gross negligence, intentional misconduct or knowing violation of law on the part of such Person and otherwise was materially in accordance with the terms of this Agreement. Indemnification under this Article IX shall continue with respect to a Person who has ceased to serve in the capacity which initially entitled such Person to indemnity hereunder. The rights granted pursuant to this Article IX shall be deemed contractual rights, and no amendment, modification or repeal of this Article IX shall have the effect of limiting or denying any such rights with respect to actions taken or Proceedings arising prior to any amendment, modification or repeal. It is expressly acknowledged that the indemnification provided in this Article IX could involve indemnification for negligence other than gross negligence.

9.3 Advance Payment. The right to indemnification conferred in this Article IX shall, upon approval by the Board in each instance, include the right to be paid or reimbursed by the Company the reasonable expenses incurred by a Person of the type entitled to be indemnified under Section 9.2 who was, is or is threatened to be made a named defendant or respondent in a Proceeding in advance of the final disposition of the Proceeding and without any determination as to the Person’s ultimate entitlement to indemnification; provided that the payment of such expenses incurred by any such Person in advance of the final disposition of a Proceeding shall be made only upon delivery to the Company of a written affirmation by such Person of his or her good faith belief that he or she has met the standard of conduct necessary for indemnification under Article IX and a written undertaking, by or on behalf of such Person, to repay all amounts so advanced if it shall ultimately be determined that such indemnified Person is not entitled to be indemnified under this Article IX or otherwise.

9.4 Indemnification of Employees and Agents. The Company may indemnify and advance expenses to any Person, as determined by the Board, by reason of the fact that such Person was an employee or agent of the Company or is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other enterprise, against any liability asserted against him or her and incurred by him or her in such a capacity or arising out of his or her status as such a Person to the same extent that it shall indemnify and advance expenses to Managers and officers under this Article IX.

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9.5 Appearance as a Witness. Notwithstanding any other provision of this Article IX, the Company may pay or reimburse reasonable out-of-pocket expenses incurred by a Manager, officer or employee in connection with his or her appearance as a witness or other participation in a Proceeding related to or arising out of the business of the Company at a time when he or she is not a named defendant or respondent in the Proceeding.

9.6 Non-exclusivity of Rights. The right to indemnification and the advancement and payment of expenses conferred in this Article IX shall not be exclusive of any other right which a Manager, officer or other Person indemnified pursuant to this Article IX may have or hereafter acquire under any law (common or statutory), any provision of the Certificate of Formation or this Agreement, any other separate contractual arrangement, any vote of the Member or disinterested Managers, or otherwise.

9.7 Insurance. The Company may purchase and maintain insurance, at its expense, to protect itself and any Person who is or was serving as a Manager, officer, employee or agent of the Company or is or was serving at the request of the Company as a manager, director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic limited liability company, corporation, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other enterprise, against any expense, liability or loss, whether or not the Company would have the obligation to indemnify such Person against such expense, liability or loss under this Article IX.

9.8 Savings Clause. If this Article IX or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the Company shall nevertheless indemnify and hold harmless each Manager, officer or any other Person indemnified pursuant to this Article IX as to costs, charges and expenses (including reasonable attorneys’ fees), judgments, fines and amounts paid in settlement with respect to any action, suit or proceeding, whether civil, criminal, administrative or investigative to the fullest extent permitted by any applicable portion of this Article IX that shall not have been invalidated and to the fullest extent permitted by applicable law.

9.9 Limitation. The exculpation provisions and indemnification obligations set forth in this Article IX shall not apply to any acts or omissions that occur at or prior to the consummation of the transactions contemplated by that certain Purchase and Sale Agreement, dated as of October 15, 2021, by and between CDW LLC, an Illinois limited liability company, and Sirius Computer Solutions Holdco, LP, a Delaware limited partnership.

ARTICLE X

Miscellaneous

10.1 Tax Treatment. The Company shall be taxed as a disregarded entity for U.S. federal income tax purposes (as well as for any analogous state or local tax purposes), and the Member and the Company shall timely make any and all necessary elections and filings for the Company treated as a disregarded entity for U.S. federal income tax purposes (as well as for any analogous state or local tax purposes).

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10.2 Amendments. Amendments to this Agreement and to the Certificate of Formation shall be approved in writing by the Member. An amendment shall become effective as of the date specified in the approval of the Member or if none is specified as of the date of such approval or as otherwise provided in the TBOC.

10.3 Severability. If any provision of this Agreement is held to be invalid or unenforceable for any reason, such provision shall be ineffective to the extent of such invalidity or unenforceability; provided, however, that the remaining provisions will continue in full force without being impaired or invalidated in any way unless such invalid or unenforceable provision or clause shall be so significant as to materially affect the expectations of the Member regarding this Agreement. Otherwise, any invalid or unenforceable provision shall be replaced by the Member with a valid provision which most closely approximates the intent and economic effect of the invalid or unenforceable provision.

10.4 Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Texas without regard to the principles of conflicts of laws thereof.

10.5 Limited Liability Company. The Member intends to form a limited liability company and does not intend to form a partnership under the laws of the State of Texas or any other laws.

10.6 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall be deemed to be an original, but all of which together shall constitute one and the instrument.

[Signature page follows]

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IN WITNESS WHEREOF, the undersigned have duly executed this Limited Liability Company Agreement as of the day first above written.

[Signature Page to Sirius Computer Solutions, LLC Limited Liability Company Agreement]

SCHEDULE A

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Exhibit 3.21

ARTICLES OF CONVERSION

converting

FORCE 3, INC.

a Maryland corporation

to

FORCE 3, LLC

a Maryland limited liability company

THIS IS TO CERTIFY THAT:

FIRST: Force 3, Inc. is a corporation formed on August 13, 1991 under the Maryland General Corporation Law (the “Converting Corporation”), and, by virtue of these Articles of Conversion and Articles of Organization filed for record herewith, is converting (the “Conversion”) to Force 3, LLC, a limited liability company formed under the Maryland Limited Liability Company Act (the “Converted LLC”), on the terms and conditions set forth herein.

SECOND: Upon the completion of the Conversion in accordance with the Maryland General Corporation Law and the Maryland Limited Liability Company Act, the Converted LLC shall, for all purposes of the laws of the State of Maryland, continue as the same entity as the Converting Corporation, and the Conversion will have the effects set forth herein and in the Maryland General Corporation Law and the Maryland Limited Liability Company Act. Upon the completion of the Conversion:

(a) All of the issued and outstanding shares of common stock of the Converting Corporation, without par value (the “Converting Corporation Common Shares”), are held legally and beneficially by a single stockholder and shall, without any action on the part of the stockholder, be converted into and exchanged for one hundred percent (100%) of the limited liability company membership interest in the Converted LLC.

(b) No shares of the Converting Corporation of any class or series other than Converting Corporation Common Shares are issued or outstanding.

THIRD: The Conversion has been approved in accordance with the provisions of Subtitle 9 of the Maryland General Corporation Law and Subtitle 11 of the Maryland Limited Liability Company Act.

FOURTH. These Articles of Conversion shall become effective upon acceptance for record of these Articles of Conversion by the State Department of Assessments and Taxation of Maryland.

FIFTH: The undersigned acknowledges these Articles of Conversion to be the act and deed of the Converting Corporation and, further, as to all matters or facts required to be verified under oath, the undersigned officer acknowledges that, to the best of his knowledge, information and belief, these matters and facts relating to the Converting Corporation are true in all material respects and that this statement is made under the penalties of perjury.

- Signature page follows -

- 2 -

IN WITNESS WHEREOF, these Articles of Conversion have been duly executed and attested on behalf of the Converting Corporation as of the 30th day of March, 2016.

CUST ID: 0003399686

WORK ORDER: 0004616264

DATE: 03-30-2016 12:48 PM

AMT. PAID: $194.00

Exhibit 3.22

ARTICLES OF AMENDMENT

Changing the name of

Force 3, LLC,

a Maryland limited liability company

to

Sirius Federal, LLC,

a Maryland limited liability company

EXPLANATORY STATEMENT

The undersigned being authorized to execute and file these Articles of Amendment for purposes of changing the name of Force 3, LLC, a Maryland limited liability company, which was formed by the filing of Articles of Conversion on March 30, 2016, which converted Force 3, Inc., a Maryland corporation, into Force 3, LLC, to Sirius Federal, LLC, hereby acknowledges and certifies that:

Amendment to Articles of Organization

Section 1 of the Articles of Organization shall be deleted in its entity and replaced with the following:

Sirius Federal, LLC

Except as amended above, the Articles of Organization shall remain in full force and effect.

IN WITNESS WHEREOF, the undersigned has executed these Articles of Amendment under oath and penalty of perjury on this 19^th day of November, 2020.

Exhibit 3.23

AMENDED & RESTATED

LIMITED LIABILITY COMPANY AGREEMENT

OF

SIRIUS FEDERAL, LLC

This AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT (this “Agreement”) of SIRIUS FEDERAL, LLC, a Maryland limited liability company (the “Company”), is dated and effective as of the 1st day of July, 2022, by and between the Company and CDW Government LLC, an Illinois limited liability company, as the sole member of the Company (the “Member”).

RECITAL

The Company was organized as a Maryland limited liability company on March 30, 2016, pursuant to the Articles of Organization filed with the Maryland Secretary of State (“MSOS”).

Prior to December 28, 2021, the sole member of the Company was Sirius Computer Solutions, Inc., a Texas corporation. On December 28, 2021, Sirius Computer Solutions, Inc. converted into a Texas limited liability company under the name Sirius Computer Solutions, LLC. Then, on July 1, 2022, Sirius Computer Solutions, LLC distributed 100% of its membership interests in the Company up-the-chain to CDW LLC, an Illinois limited liability company, and subsequently, on July 1, 2022, CDW LLC contributed 100% of its membership interests in the Company to CDW Government LLC, an Illinois limited liability company. Therefore, the Company now desires to amend and restate its Operating Agreement to admit CDW Government LLC as the sole member of the Company.

ARTICLE I

The Limited Liability Company

1.1 Formation. The Company was organized as a Maryland limited liability company effective March 30, 2016, pursuant to the Articles of Organization executed and filed with MSOS in accordance with the applicable laws of the Maryland Limited Liability Company Act, as amended and in effect from time to time (the “Act”).

1.2 Name. The name of the Company is “SIRIUS FEDERAL, LLC” and its business shall be carried on in such name with such variations and changes as the Member shall determine or deem necessary to comply with requirements of the jurisdictions in which the Company’s operations are conducted. Any change in the Company’s name shall be made by the Member in accordance with and pursuant to the Act.

1.3 Business Purpose; Powers. The Company is formed for the purpose of engaging in any lawful purpose or business for which limited liability companies may be formed under the Act. The Company shall have and may exercise all the powers and privileges granted by the Act or by any other law or by this Agreement, together with any powers incidental thereto, so far as such powers are necessary or convenient to effect any or all of the purposes for which the Company is organized.

1.4 Principal Business Office. The principal place of business of the Company shall be located at 2151 Priest Bridge Drive, Crofton, MD 21114, or at such other or additional locations within or without the State of Maryland as the Member, in its discretion, may determine.

1.5 Registered Office and Agent. The location of the registered office of the Company in the State of Maryland is 2405 York Road, Suite 201, Lutherville Timonium, MD 21093-2264. The Company’s Registered Agent at such address is The Corporation Trust Incorporated. The registered office and/or registered agent of the Company may be changed from time to time at the discretion of the Member.

1.6 Qualification in Other Jurisdictions. The Member shall have authority to cause the Company to do business in jurisdictions other than the State of Maryland.

1.7 Term. Subject to the provisions of Article VII below, the Company shall have perpetual existence.

ARTICLE II

The Member

2.1 The Member. The name and address of the Member is as follows: