Model P550B Type Intel Form Factor ATX 12V v2.31 PFC Active PFC(>0.9 typical) Input Voltage 1?00-240 Vac(full range) Input Current 8?-4 A Input Frequency 6?0-50 Hz Output Capacity 5?50W Dimension 1?50 x 140 x 86 mm Fan Type 1?20mm Hydraulic Bearing (HYB) Fan 80 PLUS Bronze Efficiency 8?5% at typical load MTBF >100,000 hours Protection OVP/OPP/SCP/UVP/OCP/OTP Power Good Signal 1?00-500ms Hold Up Time >16ms Cable Type Flat, All black Connectors ATX/MB 20+4 Pin x 1 : 550mm*1 CPU/EPS 4+4 Pin x 1 : 600mm*1 PCI-e 6+2 Pin x 2 : 550mm+150mm*1 SATA x 6 : 500mm+120mm+120mm*2 4 Pin Peripheral x 3 + 4-Pin floppy x 1 : 500mm+120mm+120mm+120mm*1