0001402057-25-000018 Sample Contracts

CDW Corporation
Performance Share Unit Award Agreement • February 21st, 2025 • CDW Corp • Retail-catalog & mail-order houses • Delaware

CDW Corporation, a Delaware corporation (the “Company”), hereby grants to the individual (the “Holder”) named in the award notice attached hereto (the “Award Notice”) as of the date set forth in the Award Notice (the “Grant Date”), pursuant to the provisions of the CDW Corporation 2021 Long-Term Incentive Plan (the “Plan”), a performance share unit award (the “Award”) with respect to the number of shares of the Company’s Common Stock set forth in the Award Notice, upon and subject to the restrictions, terms and conditions set forth below, in the Award Notice and in the Plan. Capitalized terms not defined herein shall have the meanings specified in the Plan.

SIXTEENTH SUPPLEMENTAL INDENTURE
Supplemental Indenture • February 21st, 2025 • CDW Corp • Retail-catalog & mail-order houses • New York

SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”) dated as of January 31, 2022 among SCS Holdings I, LLC, a Delaware limited liability company, Sirius Computer Solutions, LLC, a Texas limited liability company, Sirius Federal, LLC, a Maryland limited liability company, Sirius Computer Solutions Financial Services, LLC, a Delaware limited liability company (each, a “New Guarantor”), each a subsidiary of CDW LLC (or its successor), an Illinois limited liability company and U.S. Bank National Association, as trustee (in such capacity, the “Trustee”).

CDW Corporation
Restricted Stock Unit Award Agreement • February 21st, 2025 • CDW Corp • Retail-catalog & mail-order houses • Delaware

CDW Corporation, a Delaware corporation (the “Company”), hereby grants to the individual (the “Holder”) named in the award notice attached hereto (the “Award Notice”) as of the date set forth in the Award Notice (the “Grant Date”), pursuant to the provisions of the CDW Corporation 2021 Long-Term Incentive Plan (the “Plan”), a restricted stock unit award (the “Award”) with respect to the number of shares of the Company’s Common Stock set forth in the Award Notice, upon and subject to the restrictions, terms and conditions set forth below, in the Award Notice and in the Plan. Capitalized terms not defined herein shall have the meanings specified in the Plan.

TWENTIETH SUPPLEMENTAL INDENTURE
Supplemental Indenture • February 21st, 2025 • CDW Corp • Retail-catalog & mail-order houses • New York

SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”) dated as of January 27, 2025 between Mission Cloud Services, Inc., a Delaware corporation (the “New Guarantor”), a subsidiary of CDW LLC (or its successor), an Illinois limited liability company and U.S. Bank Trust Company, National Association, as trustee (in such capacity, the “Trustee”).