Windows Server 2016 Datacenter is a variant of Windows Server 2016 that is designed for highly virtualized datacenter and cloud environments. Windows Server 2016 is a cloud-compatible operating system that supports all current workloads while introducing new technologies that make transitioning to cloud computing much easier. The system brings great new layers of security to the table and possesses Azure-inspired innovation for the applications and infrastructure that can transform the way you do business.

The Windows Server 2016 licensing model includes both Cores + Client Access Licenses (CALs). Each user and device accessing a licensed Windows Server Standard, Datacenter or Multipoint edition require a Windows Server CAL, or a Windows Server and a Remote Desktop Services (RDS) CAL. A Windows Server CAL allows access to any edition of Windows Server of the same or earlier version. Each Window Server CAL provides access to multiple licenses of Windows Server. 

When you are ready to transition workloads to the public cloud, you can leverage your existing investment in Windows Server. The Azure Hybrid Use Benefit lets you bring your on-premises Windows Server license with Software Assurance to Azure. Rather than paying the full price for a new Windows Server virtual machine, you will pay only the base to compute rate