Model FSP550-51AAC Rated Output Power 550W Form Factor ATX 80 PLUS Certification 230V EU Standard Input Voltage 200-240V Input Current 4A Input Frequency 50-60Hz PFC Active PFC Efficiency 85% Fan Type Sleeve Fan, 120mm Dimensions(L x W x H) 150 x 140 x 86mm Operation Temp. 100,000 Hrs Protection OCP, OVP, OPP, SCP