Windows Server 2012
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 with new features and enhancements in virtualisation, management, storage, networking, virtual desktop infrastructure, access and information protection, the web and application platform, and more.
Product Keys 
  1. Server Essentials – K2XGM-NMBT3-2R6Q8-WF2FK-P36R2
  2. Server Standard – DBGBW-NPF86-BJVTX-K3WKJ-MTB6V
  3. Server Datacenter – Y4TGP-NPTV9-HTC2H-7MGQ3-DV4TW