So my great idea was to bulid a NUC LAB based on 3-4 D54250WYKH nodes <-- since these seem to support most Hyper-V features.
However I was very dissapointed to find out that no drivers was available for Windows Server 2012 R2. There are drivers for Windows 8.1 (straight out of the box). As far as I can see Intel has made an explicit effort in not supporting microsoft server editions.
I found a way to circumvent this: FoxDeploy.com | Hacking an Intel network card to work on Server 2012 R2
but to be frank it's a little dirty and hard to implement if you want to do an bare metal installation. I would much prefer to have the signed driver availble.
So dear Intel - why is it so?