ATX 12V 2.22&2.3 comply.
1 The 12cm or 14cm  big fan that can cool the case and have Mute function
2 The 20+4 pin, and 4*big 4pin, one small 4pin, 2 *SATA.
3 The Active PFC
4 New circuit designation of power saving, stand -by power less than 1 W (watt).
5, Mod managerment Cable
6, TC Control, EPS
7, PCI-E fast express
8, Dual rails or three rails 12V ouput
9, CE,FCC, 80PLUS