CORSAIR CS-M Series CS850M 850W 80 PLUS GOLD Active PFC Haswell Ready ATX12V & EPS12V Modular Power Supply Main Connector: 20+4Pin +12V Rails: Single PCI-Express Connector: 4 x 6+2-Pin SATA Power Connector: 8 Over Voltage Protection: Yes Overload Protection: Yes Input Voltage: 100 - 240 V Input Frequency Range: 47 - 63 Hz