Rosewill Stallion Series - 450-Watt ATX V2.2 Power Supply - RD450-2-SB Fans: 1 x 120mm Ball Bearing Fan Main Connector: 20+4Pin +12V Rails: 2 PCI-Express Connector: 1 x 6-Pin SATA Power Connector: 4 Hold-up Time: 16ms min. Over Voltage Protection: Yes Overload Protection: Yes