Product Detail Box Contents - LS500 power supply, 1 x 20 + 4 Pin Motherboard Connector, 1 x 4Pin / 8-Pin EPS Connectors (2 Connectors), 1 x 5 Pin SATA Power Cable (2 Devices), 1 x 6 Pin PCI-Express Connector, 1 x 4 Pin Power Cable (2 Devices + 1 Floppy), 1 x 4 Pin Power Cable (3 Devices) 500 Watts (Full Load, Nominal Input Voltage) 120mm Fan Thermostatically controlled fans for low acoustic noise. Short Circuit Protection . The "Lifetime Series 500W Psu" is best product for you. We recommended Lifetime Series 500W Psu