Microsoft Windows Remote Desktop Services 2016 - Licence - 50 device CALs - OEM, field - required for Windows Server 2016 Datacenter and Standard if Remote Desktop Services shall be used - Win - for PRIMERGY CX2560 M5, RX2520 M5, RX2530 M4, RX2530 M5, RX2540 M5, RX4770 M4, TX2550 M5