Thermaltake SP-1000M 1000W ATX 12V 2.3 & EPS 12V 2.92 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Full Modular Active PFC Power Supply Fans: 1 x 135mm Fan Main Connector: 20+4Pin +12V Rails: 2 PCI-Express Connector: 6 x 6+2-Pin SATA Power Connector: 12 Power Good Signal: 100-500ms Hold-up Time: 16msec (minimum) of full load at 115Vac / 230Vac input Efficiency: 82-88% efficiency @ 20-100% load