CORSAIR CX-M series CX850M 850W 80 PLUS BRONZE Haswell Ready ATX12V & EPS12V Modular Power Supply Fans: 1 Main Connector: 20+4Pin +12V Rails: Single PCI-Express Connector: 3 x 6+2-Pin SATA Power Connector: 3 Efficiency: 85% Over Voltage Protection: Yes Overload Protection: Yes