BFG Tech GS-550 550W 20+4-pin ATX Power Supply w/SATA, PCI-E, Dual 12V Rails, & 8-pin +12V ATX Connector (Chrome) BFG Tech GS-550 550W ATX12V 2.2 Power Supply General Features: Chrome color One (1) Silent 140 mm intake fan 550-watt continuous rated power at 40 C ATX 12V 2.2 compliant Dual 12V rails Fully-sleeved mesh cables PCI Express ready BFG Thermal Control Technology Protection Circuitry MTBF: 80,000 hours at 25 C High Efficiency: 80% typical Works with AGP, PCI and PCI Express motherboards