Buy Microsoft RDS CALs for Windows Server.

Microsoft Remote Desktop Services CALs — formerly Terminal Services — for Windows Server 2025, 2022, 2019 and 2016. Every user or device connecting to your deployment needs one, and we help you choose the right version, CAL type and quantity.

Delivery in 15 minutes
Perpetual RDS CALs
60-day money-back
Support included

Choose your server version

2025 Windows Server 2025 RDS CALs Downgrades to 2022 / 2019 / 2016 Buy 2025 RDS CALs 2022 Windows Server 2022 RDS CALs Downgrades to 2019 / 2016 Buy 2022 RDS CALs 2019 Windows Server 2019 RDS CALs Downgrades to 2016 Buy 2019 RDS CALs 2016 Windows Server 2016 RDS CALs Licenses 2016 only Buy 2016 RDS CALs
Every order includes
  • Delivery email within 15 minutes, 24/7

    Your email contains — license document (PDF) with your license number, setup guide, link to an installation video, and invoice. Everything stays in your account, available whenever you need it.

  • 60-day money-back guarantee

    You get a full refund if we cannot resolve an issue related to your purchased CALs. Ordered wrong CAL type? Self switch User ↔ Device once, free from your account. Refund policy.

  • Support at every step

    Our team of experts can assist you with choosing the right server version and CAL type, ordering, hands-on installation, activation, and troubleshooting. Contact us if you need help.

What is RDS, and why are CALs required?

What RDS does

RDS provides remote access to Windows Server desktops, applications and shared work environments. In older releases the same role was called Terminal Services.

Why CALs are needed

Every user or device that connects to Remote Desktop Services needs an RDS CAL matching that Windows Server version.

How CALs are managed

CALs are installed and tracked through the Remote Desktop Licensing role in Windows Server.

What a CAL is not

An RDS CAL does not include the Windows Server operating system, application licenses, hosting or server setup.

For standard Windows Server environments

If it runs a supported Windows Server OS with the Remote Desktop Services role, these CALs apply — wherever the server lives.

Supported versions
2025 2022 2019 2016
Physical or virtual hosts

Bare metal or Hyper-V, in an Active Directory domain or a workgroup. The most common RDS deployment.

Most common
Hosting providers

A dedicated server, VPS or collocated host with a supported Windows Server OS.

Dedicated / VPS
Azure and dedicated cloud hosts

Azure, or a dedicated host at AWS, Google Cloud or another provider, running a supported Windows Server OS. Cloud deployments are licensed with User CALs.

User CALs
Who we are

Microsoft RDS licensing specialists

RDS CAL Store is operated internationally by Sysvista Solutions. We have been planning, deploying and licensing Microsoft Remote Desktop Services since 2015, serving 5,000+ customers worldwide. With extensive experience in licensing, implementing and troubleshooting RDS, we can precisely fulfil your deployment requirements.

Product focus RDS Licensing & Deployment
Customers served 5,000+
Established 2015

Customer reviews

Reviews from Trustpilot and Google.

Trustpilot

Great service, price and delivery

Guy Carr
GB · 27 Aug 2026
Trustpilot

Superb service, from the very easy ordering of the correct license, to follow up checking that all went well and then offering remote assistance within 15 minutes when further help was needed. Absolutely top service, thank you

Chris O'Brien
GB · 8 Jul 2026

Get remote users online now.

Delivery Within 15 minutes, day or night
Refund 60 days, full money-back
Support Installation help included
Switch User ↔ Device CAL, free