Microsoft Windows Server 2012 R2 Standard - license - 1 server (up to 4 CPU/4 VOSEs)

At the heart of the Microsoft Cloud OS vision, Windows Server 2012 R2 brings Microsoft's experience delivering global-scale cloud services into your infrastructure. Windows Server 2012 R2 offers exciting features and enhancements across virtualization, storage, networking, virtual desktop infrastructure, access and information protection, and more.