Microsoft

Microsoft Windows Server 2025 Remote Desktop Services CAL (User)

Windows Server

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At a glance

License scope: RDS User CAL for Remote Desktop Services: required for each accessing user in addition to the Windows Server CAL.

All product details and system requirements

Windows Server

Is this product right for you?

Microsoft Windows Server 2025 Remote Desktop Services CAL (User): Client Access License (CAL) per user for Windows Server 2025. It complements the server license and contains no server software.

Guide: RDS CAL: licensing Remote Desktop Services

Guide: License glossary: CAL, core, LTSC, SE and other terms explained

Guide: User CAL or device CAL

Not sure it fits? We will check it with you – tell us your server environment.

Delivery and activation

Order and payAs a guest or with a customer account. The delivery time starts when payment is received.
Receive the keyproduct key by email. Immediately after payment is received.

If a key does not work: If the delivered key is faulty, you first receive a replacement; if the replacement does not help either, we will consider refunding the purchase price. Your statutory warranty rights remain unaffected.

Process in detail

With your order you receive instructions for installation and activation. If you get stuck, we help personally by email or contact form, on request also by Callback or remote help (TeamViewer) at the agreed time.

If the delivered product key is legitimately faulty, we will in principle first provide a replacement. If the problem persists after the replacement, we will consider refunding the purchase price concerned. If a problem only occurs later, we will first check the cause. Statutory warranty rights remain unaffected.

Purchasing and use

For businesses

Cores, CALs and virtualization for your server environment: we are happy to clarify with you before you order. On request you receive with your order Proof of origin and Declaration of assignment. The right of use is governed by the manufacturer's license terms.

Information for business customers

Claims for resellers

For resellers, the claim must relate to a specific order line. For the review we may request an error code, a screenshot or a technical diagnosis. After a replacement, in the event of a further justified complaint, we will consider a credit note or refund. Replaced or refunded keys must not be used further or resold.

Scope of use: User CAL for 1 licensed user. Requires a licensed server instance.

Product details and requirements

Manufacturer: Microsoft
Product: Windows Server 2025
Edition: Remote Desktop Services CAL
Operating system: Windows Server
user: 1 user
License type: Activation key; right of use under the manufacturer's license terms
Activation: Delivered as a product key.
B2B documents on request: Proof of origin, Declaration of assignment
Delivery method: product key by email
Delivery time: Immediately after payment is received
Scope of use: User CAL for 1 licensed user. Requires a licensed server instance.
Server license scope: RDS User CAL for Remote Desktop Services: required for each accessing user in addition to the Windows Server CAL.
Manufacturer support until: 2034-11-14
Item number: VKA-CAL-WS25-USER-RDS

System requirements

Processor: 1.4 GHz 64-bit processor (x64) with NX/DEP, CMPXCHG16b, LAHF/SAHF, PrefetchW and SLAT, plus SSE4.2 and POPCNT
Memory: 2 GB (Desktop Experience: 4 GB recommended); ECC for physical hosts
Storage: 32 GB (absolute minimum)
Other: network: Ethernet 1 Gbit/s or faster; TPM 2.0 only for certain features such as BitLocker

Check the support period at the manufacturer (new tab)

Frequently asked questions

What do I receive and when is it delivered?

product key by email. Delivery time: Immediately after payment is received.

How do I activate this product?

We are happy to tell you the activation method for this offer before you order.

Does the offer fit my existing installation?

Tell us your current version, edition and operating system – we will check with you before the purchase whether this offer fits.

Can I use the product in my company?

This offer includes a product key for activation; the right of use is governed by the manufacturer's license terms (Terms and Conditions § 4). For resellers we provide the B2B documents listed with the offer on request.

How long does the manufacturer support this version?

Manufacturer support ends on 14/11/2034. After that, no further security updates are planned for this version. A perpetual license does not extend the support period.

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