SPARKLE Computer Corp’s new Gold Class series 1250W power supply combines high-performance with high energy-efficiency to deliver a high-end power supply that is certified at the 80 PLUS Gold level -- designed to go beyond the power requirements of gamers and PC enthusiasts while at the same time being green. These next-generation power supplies are built for the ultimate enthusiast with power that’s more than sufficient to handle three of the highest-end graphics cards available today. Fans: 1 x 139mm fan Main Connector: 24Pin +12V Rails: 6 PCI-Express Connector: 6 x 6+2-Pin SATA Power Connector: 12 Over Voltage Protection: Yes Input Voltage: 90 - 264 V Input Frequency Range: 50/60 Hz