Thermaltake Toughpower TPD-0550M - SLI/ CrossFire Ready 80 PLUS Gold Certification and Semi Modular Cables Black Active PFC Power Supply Intel Haswell Ready (PS-TPD-0550MPCGUS-1) Fans: 1 x 140mm Fan: 2400 R.P.M. +/- 10% Main Connector: 24Pin +12V Rails: Single PCI-Express Connector: 2 x 6+2-Pin Power Good Signal: 100-500ms Hold-up Time: 17msec (minimum) @ full load at 115Vac/ 60Hz input Efficiency: 87-92% efficiency @ 20-100% load Over Voltage Protection: Yes