Buy Microsoft RDS CALs for Windows Server.

Microsoft Remote Desktop Services CALs — formerly Terminal Services — for Windows Server 2025, 2022, 2019 and 2016. User or Device, in any quantity from a single CAL up to 500, alongside the standard 5, 10, 20 and 50 packs.

1–500 Custom CAL quantities
15 min Day or night

Every order includes

Three things, on every order, with no exceptions.

Email delivery in 15 minutes

License document (PDF), setup guidance, a video installation guide, and invoice are emailed within 15 minutes of checkout, day or night.

60-day 100% money-back

If a delivery, access, installation, or licensing issue cannot be resolved by our support team, we provide a 100% moneyback refund.

Free User ↔ Device swap

Picked the wrong CAL type? Swap between User and Device free from your Order Summary within 60 days, or contact us for help.

Buy the exact number of CALs you need No minimums, no bundles — order the exact count.
1 to 500 CALs
No minimum order — pay only for the CALs you use
2025 / 2022 / 2019 / 2016
Downgrade-friendly across supported releases
User / Device
Same price either way — pick the model that fits

Need above 500 CALs? Contact us.

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 other clouds

Azure, Google Cloud, AWS or any other platform running a supported Windows Server OS.

Any cloud

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.

User CALs or Device CALs

Same price, different licensing model — pick by how your people connect.

RDS User CALs Licensed to people. Follows them across every device they sign in from.
Licensed per
One named user, on any number of devices
Active Directory
Required
Best when
Employees connect from a laptop, a desktop and a phone
Access belongs to
The person
RDS Device CALs Licensed to hardware. Covers everyone who sits down at that machine.
Licensed per
One device, used by any number of people
Active Directory
Not required — works in a Workgroup too
Best when
Several people share a fixed terminal or shop-floor PC
Access belongs to
The machine

Not sure which fits? The calculator sizes an order in about a minute.

Who we are

Microsoft RDS licensing specialists

We have been planning, deploying and licensing Microsoft RDS as Sysvista Solutions Limited since 2015. With extensive experience in licensing, implementing and troubleshooting RDS, we can precisely fulfill your deployment requirements.

Trading since
2015
Customers served
5,000+
Product focus
RDS only

What our customers say

Verified CAL with Microsoft and activates with no issues.

Alex Reimer
Server 2025 — 5 Device CALs

Great communication and instant exchange when I ordered the wrong license.

Ian Maxwell
Server 2025 — 5 User CALs

Get remote users online now.

Delivery Within 15 minutes, day or night
Refund 60 days, 100% money-back
Swap User ↔ Device, free