Inter-Tech HIPOWER SP-550. Total Power: 550 W, AC Input Voltage: 100 - 240 V, AC Input Frequency: 50 - 60 Hz. Motherboard Connector: 20+4 pin ATX, Motherboard Cable Length: 50 cm, PCI Express Power Cable Length: 50 cm. Purpose: PC, Power Supply (PSU) Form Factor: ATX, Noise Level: 35 dB. Colour: Black, Cooling: Active, Fan Diameter: 12 cm. Width: 150 mm, Depth: 140 mm, Height: 86 mm