Rosewill - Stallion Series 600-Watt Modular Power Supply Unit- ATX 12V, SLI & CrossFire-Ready - RD600-M Fans: 1 x 140mm Fan Main Connector: 24Pin +12V Rails: Single PCI-Express Connector: 2 x 6+2-Pin SATA Power Connector: 7 Over Voltage Protection: Yes Input Voltage: 100 - 240 V Input Frequency Range: 50/60 Hz