FirePower Technology PC Power and Cooling Silencer 610W EPS12V Power Supply, Certified ATX 610 S61EPS 610 W Continuous at 40C (670W Peak) +12VDC at 49A High Efficiency (83%), .99 Active PFC Dual PCI-E and 15 Drive Connectors Automatic Fan Speed Control Circuit 610 W Continuous @ 40C (670W Peak) +12VDC @ 49A High Efficiency (83%), .99 Active PFC Dual PCI-E and 15 Drive Connectors Automatic Fan Speed Control Circuit