SILVERSTONE Strider Series PS-ST50F-PB 500W ATX12V / EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply Fans: 1 Main Connector: 20+4Pin +12V Rails: Single PCI-Express Connector: 2 x 6+2-Pin SATA Power Connector: 8 Efficiency: 82%~85% at 20% ~ 100% loading Over Voltage Protection: Yes Input Voltage: 90 - 264 V