Windows Server 2022/2019 Standard/DatacenterRDS 50 CAL User/Device USAPermanent after-sales serviceThis is a physical item/delivery.IMPORTANT:RDS 2022 User/Device is compatible only with Server 2022 DTC/STD,RDS 2019 User/Device is compatible only with Server 2019 DTC/STD,We offer New, Unused and Multilingual Remote Desktop Services 2019/2022 R2 50 CALs LIFETIME Licenses. After Your purchase You get RDS 2019/2022 50 CALs User or Device License sheet with Product key mailed to your address. No digital delivery.RDS is an abbreviation for "Remote Desktop Services," and it refers to the feature that allows users to interact with graphical desktops and Windows programs remotely. Client Access Licenses can be used to centrally control desktop networks (CALs). Windows Server CAL or a Windows Server CAL plus Remote Desktop Services are required for each user or device that connects to a licensed Windows Server (RDS).RDS USER: Allows a user to connect to a Remote Desktop Session Host server and start a Remote Desktop session. Regardless of the number of devices used to log in by the user.RDS DEVICE: Allows a specified device to connect to a Remote Desktop Session Host server and start a Remote Desktop session. Regardless matter how many people connect from this device.