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Microsoft Windows Server 2025 Standard Edition - 1 User CAL — main product image
Microsoft

Microsoft Windows Server 2025 Standard Edition - 1 User CAL

License one user to access Windows Server 2025 Standard or Datacenter across multiple devices with this official Microsoft CAL.

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Overview

The Microsoft Windows Server 2025 Standard Edition 1-User CAL is a client access license that authorizes a single named user to connect to and use services on a Windows Server 2025 Standard or Datacenter installation. In Microsoft's licensing model, every user or device that accesses a Windows Server requires a CAL, making this a compliance essential for any organization running Windows Server infrastructure. Because this is a User CAL rather than a Device CAL, the licensed individual can connect from any number of their own devices—desktop, laptop, tablet, or phone—under a single license.

One of the practical advantages of the Windows Server 2025 CAL is its backward compatibility: it provides access rights not only to Server 2025 but also to all previous versions of Windows Server. This is particularly valuable for organizations running mixed environments during migration periods. It is important to note that this product is solely a client access license. It does not include the Windows Server operating system, installation media, or server hardware licenses. Organizations will need to purchase the appropriate number of User or Device CALs based on their access model, in addition to the base server license.

Key Features

Client Access Licenses (CALs) are required for every User or Device accessing Windows Server Standard or Windows Server Datacenter

Windows Server 2025 CALs provide access to Windows Server 2025 or any previous version of Windows Server.

A User client access license (CAL) gives users with multiple devices the right to access services on Windows Server Standard and Datacenter editions.

Beware of counterfeits | Genuine Windows Server software is branded by Microsoft only.

Specifications

Publisher
Microsoft
Edition
Standard
License Type
User CAL (Client Access License)
Number of Users
1
Server Compatibility
Windows Server 2025 Standard and Datacenter (and all prior versions)

Frequently Asked Questions

A User CAL permits a single named user to access Windows Server from any number of devices. A Device CAL, by contrast, permits a single device to be used by any number of users. A User CAL is more cost-effective when one person uses multiple devices such as a desktop, laptop, and phone.
A Windows Server 2025 CAL grants access to Windows Server 2025 as well as all previous versions of Windows Server, making it useful in mixed-version environments.
This is a Client Access License only. It authorizes one user to connect to a Windows Server but does not include the server operating system itself. You must have a separately purchased Windows Server 2025 Standard or Datacenter license installed on your server.
Genuine Windows Server CALs are branded and distributed by Microsoft. Purchase from authorized Microsoft resellers and verify the product key through Microsoft's Volume Licensing Service Center or your licensing portal.

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