GenMax 400-Watt 20+4-pin ATX Power Supply with SATA GenMax 400W 20+4 ATX Power Supply General Features: 400-watt total Single fan 110-130/200-240V switchable power supply One (1) 12-inch 20+4 ATX power connector One (1) 12-inch 12V ATX power connector Four (4) large 4-pin Molex power connectors One (1) small 4-pin floppy connector One (1) SATA power connector Power Specifications: +3.3V, 22A +5V, 28A