Cooler Master MWE 550W 80 Plus White Certified Power Supply The MWE delivers everything you expect from top tier power supply at a budget price. This unit also comes with a circuit design that will protect your system at all times. The 120mm fan keeps your system cool with little noise. This tough little box is the perfect solution for all your power needs.  High Efficiency and Low Noise with Active Power Factor Correction design and forward topology. Meeting the 80 PLUS certification for 230V, the MWE will guarantee a typical efficiency of at least 85% during normal use. ErP 2013 Lot 6 Compliant The MWE is designed to the latest envirmental regulations and standards, meeting the ErP 2013 mandates. The MWE consumes less then 0.5 Watt when your system is in standby mode, which not only reduces strain on the environment but also your energy bill. Proven Thermal Resistance The MWE is engineered to operate normally at up to 40°C, providing added security and reliability to systems operating in warmer environments. Quiet and Durable The thermally controlled 120mm HDB fan operates smoothly without friction. Enjoy your system with a durable fan in a quiet environment. Damage Resistant The MWE provides you full standard protection (OVP/SCP/OPP) plus built-in Over Temperature Protection (OTP). These extra security measures minimize the risk of damage to your system from power outages. Specification: Power 550W Certification 80 Plus White Certified Fan Fan Size 120mm| Fan Bearing HDB| Fan Speed 725-1460 RPM Connector MB 20+4 Pin 1| CPU 12V 4+4 Pin 1| SATA 6| 4 Pin Peripheral 3| FDD Cable 4 Pin 1| PCI-e 6+2 Pin 2| Dimension (L x B x H) 140 x 150 x 86mm Input Input Voltage 200-240 Vac| Input Current 3.5A| Input Frequency 47-63Hz| Warranty 3 Years  ..