Microsoft Windows Server 2019 Standard 16 Cores 64bit DVD + COA +50 RDS + 50CALS
For example, Windows Server 2019 CALs can be used for Windows Server 2019 and earlier versions. 64Bit Only. Microsoft Windows Server 2019 Standard 16 Cores 64Bit + Motherboard. You need both Windows Server CALs and RDS CALs.