ENERMAX NAXN ENP450AST 450W ATX12V Power Supply Fans: 1 x 120mm fan Main Connector: 24Pin +12V Rails: 2 PCI-Express Connector: 1 x 6-Pin, 1 x 6+2-Pin SATA Power Connector: 5 Over Voltage Protection: Yes Input Voltage: 115 / 230 V Input Frequency Range: 47 - 63 Hz