Don't get all excited here! An Antec Smartpower 2.0 PSU is ATX 2.0: It has a 24 pin/ 4 pin 12 volt rail and PCIe connectors. Don't concern yourself witht the picture above. ATX 2.0 24pin + PCIe connectors. The Antec 2.0 500 or 550 watt will do you just fine for under a$100!!!!