Power supply unit power 300 watt certificates 80 plus bronze noise emission 314 db pci express connectors 6 pin 1 serial ata connections 4 efficiency 100 91 cooling system active max fans 1 power factor correction active motherboard power connectors atx12v 204 pins floppy 2 current strengths 3 3v 21 a 5v 15 a 5vsb 2 a 12v1 13 a 12v2 13 a 12v 0 3 a combined power 33v5v 103 watt combined power 12v 264 watt dimensions