Buy Microsoft RDS CALs for Windows Server.
Get the right RDS CALs for your setup, with expert guidance from specialists in Microsoft Remote Desktop Services licensing.
Microsoft Remote Desktop Services Client Access Licenses (RDS CALs) — formerly Terminal Services — for Windows Server 2025, 2022, 2019 and 2016. Every user or device connecting to your Server through Remote Desktop needs an RDS CAL.
Choose your server version
New 2025 deployments, and anyone who wants the widest downgrade path from a single purchase.
Every order includes
Your satisfaction is our top priority.
Email delivery in 15 minutes, 24/7
You receive your license document with license number, activation details, CAL installation video, and invoice.
90-day money-back guarantee
If we can’t resolve an issue with your RDS CALs, you get a full refund. Refund policy →
Switch User ↔ Device CAL type
Ordered the wrong type? Switch once between User ↔ Device CALs at no extra cost within 90 days.
RDS and CALs explained
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
RDS CALs are installed and managed through Remote Desktop Licensing Manager 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.
Supported environments
User CALs vs Device CALs
RDS User CALs
One licensed user. Access from any number of devices.
- Best for
- People who switch between a work PC, laptop and home computer.
- How many do I need?
- One CAL for each user who needs RDS access.
- Example
- 10 people using multiple devices need 10 User CALs.
- Server environment
- Requires an Active Directory domain. Not supported for workgroup deployments.
RDS Device CALs
One licensed device. Access for any number of users.
- Best for
- Shared workstations used by different people, such as teams working in shifts.
- How many do I need?
- One CAL for each device used to access RDS.
- Example
- 20 people sharing 5 PCs need 5 Device CALs.
- Server environment
- Works with Active Directory domains and workgroup deployments.
Microsoft RDS licensing specialists
We have been planning, deploying and licensing Microsoft RDS since 2015. With extensive experience in licensing, implementing and troubleshooting RDS, we can precisely fulfill your deployment requirements.
- Trading since
- 2015
- Customers served annually
- 5,000+
- Product focus
- RDS only
Customer reviews
I liked their fast delivery and the detailed license document; a video installation demo link was also included. Keep up the same standards.
Excellent service with a strong level of professionalism throughout. They demonstrated clear expertise in managing and supporting and ensuring everything was configured correctly and running without issue.
Have been working with this team for the past few months, no issues with their service, and they provided assistance when needed.
Recived the Cals quickly. I had missed a step when installing, connected the customer support and they helped. Very happy with their support.
Accurately described, quickly delivered. Installed per the included instructions and worked well.
Great communication and instant exchange when I ordered the wrong license.
Didn't wait long for the email. The rds cals installed flawlessly.
Verified CAL with Microsoft and activates with no issues.
Really fast. They saved me from a bad week when my temporary RDP expired. I will keep buying licenses here.
License arrived by email within 5 minutes and activated without issue. Would definitely order another pack if we need to expand.
Your website was intuitive and easy to follow. I was able to purchase and load the licenses within minutes.
Email arrived quickly. Happy with this purchase, as with previous ones.
This was the 8th set of RDS CALs purchased in the last 11 months. Total of 250 CALs so far. Every purchase went very smooth and the CALs worked great.
Awesome. They helped me solve an installation issue immediately. Will be buying more as the server farm grows.
O Cals teve o desempenho esperado, e o suporte oferecido foi impecável.
Exactly what we needed for our new server. Fast delivery and no setup problems.
Excellent. Third time I am buying from this store.
These guys are amazing. I even had some problems installing and they gave remote support to install it correctly.
Everything went as planned
Impeccable, rien à redire ; j'ai reçu la licence par e-mail dans les 5 minutes suivant la commande.
Multi-time buyer. As expected, worked perfectly when adding to an existing license pack.
Exactly what I was looking for and what I needed. Would definitely order again.
Made coordination among staff easy
Genuine cals and quick delivery, would buy from again.
good experience
I buy 20 CAL for Windows Server, they answer fast all my question, delivery my license via email in order to install faster and everything work perfect. 100% I will buy again and recommend if you need to buy Microsoft license.
As always, just outstanding service. Return customer and we will be back.
Great service, price and delivery
Excellent service and excellent support, both before and after the purchase.
Fast delivery. These guys are my go-to for remote CALs. Highly recommended.
Legitimate. Worked as promised. Quick delivery. Much appreciated.
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
I am very satisfied; as always everything was fine. Fast delivery, reliability, good prices.
Got up and running in no time with this license. Great price, too.