The difference is Standard Server is just a file server with few hard drives with little rams needs.. Not a muscle server.. Now DataCenter server is different is that store large data running a lots cluster data like MS SQL and other large files stored.. I am using Windows 2008 R2 Enterprise which has it all features and along attach to iSCSI connected to FreeNAS and Western Digital MyClound EX2 Works charm!
Hhahahaha. Did you notice that the nanoserver lacks the premium codecs fields? Just kidding. Thanks for your comparison.