SPECIFICATION: P/N LTP-0550C-F watts 550W RGB Fan No Form Factor ATX Model LTP-550NL2NK Type ATX 12V 2.3 Max. Output Capacity 550W Color Black Dimension ( W / H / D ) 150mm x 86mm x 140mm PFC (Power Factor Correction) W/O PFC Power Good Signal 100-500 msec. Hold Up Time >16msec Input Current 10A Input Frequency Range 50Hz - 60Hz Input Voltage 110V / 220V Operating Temperature +5℃ to +35℃ Operating Humidity 20% to 85%,non-condensing Storage Temperature -40℃ to +55℃ Storage Humidity 10% to 95%, non-condensing COOLING SYSTEM 120mm Fan: 1800±10% RPM MTBF 100,000 hrs minimum Safety Approval CE, TUV SUD, CB, FCC, UL, S-Mark, EAC, BSMI and RCM certified. PCI-E 6+2pin 6+2pin PCI-E Connector x 2