Power supply unit power 500 watt certificates 80 plus noise emission 27 db serial ata connections 1 cooling system active max fans 1 power factor correction passive special feature auto fan control motherboard power connectors atx12v 204 pins floppy 1 peripheral connectors 4 pin 4 current strengths 3 3v 30 a 5v 30 a 12v1 30 a 12v 0 8 a 5vsb 2 5 a dimensions 151 x 116 x 16 cm safety features psu protection over current protecti