Internal power supply for personal computer, power 550 w, input voltage 230 Vac, 50/60 Hz, compliant with atx 12V v.2.01 specifications, main switch, overvoltage protection, overload protection, short circuit protection, high MTBF, high reliability, silent operation, 12 cm silent fan, temperature control of fan speed, cable length 35 cm, 1 connector 20 4 poles, 1 connector 12V 4 4 poles, 2 molex connectors, 1 floppy connector, 2 Sata connector , dimensions 150x140x85 mm, weight 1.0 Kg, CE certification, Rohs, single pack.