Check the listing for details. Microsoft Windows Server 2019 RDS CAL 5 Users New. Condition: Brand New, Made in United States. Listed at 181.68 USD. A Remote Desktop Services Client Access License (RDS CAL) of type "User" allows a specific user to connect to a Windows Server 2019 server via Remote Desktop Services, from any device (desktop, laptop, tablet). This license is assigned to the user in Active Directory and allows flexible access from multiple devices without limiting the number of devices. Installation is done through Remote Desktop Licensing Manager on your Windows Server 2019 server. You will first need to activate the RDS License Server and then install the CALs by entering the product key provided. Licenses will then be automatically distributed to users when they log in. The RD Session Host server must be configured to point to your license server. RDS CAL licenses for Windows Se.