CORSAIR CX series CX500 500W 80 PLUS BRONZE Active PFC ATX12V & EPS12V Power Supply Fans: 1 x 120mm Ultra-quiet fan (Sleeve Bearing) Main Connector: 20+4Pin +12V Rails: Single PCI-Express Connector: 2 x 6+2-Pin SATA Power Connector: 5 Hold-up Time: 10ms (at 80% load) Efficiency: > 80% Over Voltage Protection: Yes