for standard computers, the power supply is also compatible with lots of Dell, Gateway, Hp, and Compaq computers. This power supply has two 12V rails for a total of 34 amps of current. This special design is perfect for high-end demanding video cards like Nvidia and ATI. The PCI express plug on this power supply produces a whopping 192 watts all by itself! Technical Specs: ATX Form Factor 6.00" Wide X 3.25" Tall X 5.5 " Deep One ATX connector (20/24 pin) One 12V connector for P4 motherboards One 8 PIN CPU connector Four 4 PIN Molex connectors One Floppy 4 PIN connector One PCI Express connector (produces 192 watts) Two SATA connectors Output Max. Load +3.3V 30.0A +5V 30.0A +12V1 16.0A +12V2 18.0A +5Vsb 2.5A -12V 0.8A  (less)