Description

Microsoft Windows Server 2019 Remote Desktop Services (RDS) Device CAL
The essential licensing component that enables any device to access your Windows Server 2019 Remote Desktop environment securely and compliantly.

Overview

Microsoft Windows Server 2019 RDS Device CAL (Client Access License) is a per‑device entitlement that grants a single physical or virtual device the right to connect to a Remote Desktop Session Host (RD Session Host) or a Remote Desktop Virtualization Host (RD Virtualization Host). When you purchase a Device CAL, any user who works from that device—whether it is a desktop, laptop, thin client, or a kiosk—can launch a Remote Desktop Services (RDS) session without requiring additional licenses.

Why choose a Device CAL?
If your organization has shared workstations, shift‑based staffing, or a high‑density environment (call‑centers, labs, training rooms), a Device CAL often delivers the most cost‑effective licensing model.

Detailed Feature Set

System Requirements

To successfully deploy Windows Server 2019 RDS Device CAL, ensure the underlying infrastructure meets the following minimum specifications:

Tip: For optimal performance, pair Device CALs with Remote Desktop Connection Broker and RD Web Access to enable load balancing and single‑sign‑on across your session hosts.

Device CAL vs. User CAL – Which Is Right for You?

Choose Device CAL when you have fewer devices than users (e.g., hot‑desking). Choose User CAL when you have more devices than users (e.g., remote workers with multiple devices).

How to Purchase and Activate a Windows Server 2019 RDS Device CAL

1. Assess Your Environment – Determine the number of devices that will access RDS.
2. Select the Correct Edition – Device CALs are sold as Standard (for Standard edition servers) or Datacenter (for Datacenter edition servers).
3. Buy Through an Authorized Reseller – Use Microsoft’s Partner Network or a reputable volume‑licensing provider.
4. Receive the License Key – A 25‑character alphanumeric key is delivered via email.
5. Install the RD Licensing Role – On your Windows Server 2019, add the Remote Desktop Services role and then the Remote Desktop Licensing role service.
6. Activate the License Server – Use the RD Licensing Manager (run licmgr.exe) and follow the wizard to connect to Microsoft’s activation servers.
7. Add the Device CALs – In the Licensing Manager, choose Add Licenses, paste the key, and select Device CAL as the type.
8. Assign Licenses – The RD Session Host will automatically issue a Device CAL to any device that connects, as long as the Licensing Server is reachable.

Outbound Resources
• Official Microsoft documentation on [Remote Desktop Services Licensing] (https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/rds-license)
• Microsoft’s [Windows Server 2019 Licensing Guide] (https://www.microsoft.com/licensing/docs/view/WindowsServer2019)
• Guidance on [Choosing Between User and Device CALs] from a reputable IT blog (https://www.theregister.com/2023/04/12/user_vs_device_cal/)

Frequently Asked Questions (FAQ)

Best‑Practice Checklist for Deploying RDS Device CALs

•  Inventory Devices – Create a definitive list of all workstations, kiosks, and thin clients that will access RDS.
•  Validate Server Edition – Ensure your Windows Server 2019 edition (Standard or Datacenter) matches the CAL purchase.
•  Enable License Server Redundancy – Deploy a second RD Licensing server for fail‑over.
•  Configure License Assignment Mode – Set Per Device in the RD Session Host Configuration (gpedit.msc → Computer Configuration → Administrative Templates → Windows Components → Remote Desktop Services → Remote Desktop Session Host → Licensing).
•  Monitor License Usage – Use RD Licensing Manager reports to verify that the number of active devices does not exceed purchased CALs.
•  Document All Licenses – Keep a secure, auditable record of license keys, purchase orders, and activation dates.
•  Apply Latest Updates – Install the latest cumulative updates for Windows Server 2019 to maintain security and compatibility.

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Final Thoughts

Choosing the right licensing model is as critical as the underlying technology. Microsoft Windows Server 2019 RDS Device CAL empowers organizations with predictable costs, simplified management, and unrestricted device‑based access to Remote Desktop Services. Whether you are modernising a call‑center, provisioning shared lab computers, or building a secure virtual desktop infrastructure, the Device CAL offers a scalable, future‑ready foundation.

Ready to get started? Contact your Microsoft certified partner today, request a quote, and ensure your Remote Desktop environment is fully licensed, compliant, and optimised for performance.

Empower your workforce. License with confidence.

Buy now