LOGISYS Computer PS550E12 550W ATX12V Power Supply Fans: 1 x 120mm Dual Ball Bearing fan, 2000RPM / 75CFM Main Connector: 20+4Pin +12V Rails: Single SATA Power Connector: 2 Over Voltage Protection: Yes Input Voltage: 100-120Vac/ 200-240Vac Input Frequency Range: 50/60 Hz