In Pictures: 10 great new features in Windows Serv...
VM Direct Connect
Connecting to a running VM over RDP requires an active network connection, which you can't always count on. In addition to an active network connection, the VM must have an IP address reachable by the system attempting to connect, a requirement with potential management and security issues depending on the environment in which you're running. All this changes in Windows Server 2012 R2 and Hyper-V with the addition of VM Direct Connect. This feature allows a direct remote desktop connection to any running VM over what's now called the VM bus. It's also integrated into the Hyper-V management experience.
In Pictures: 10 great new features in Windows Server 2012 R2 Hyper-V