Cooler Master iGreen 500W power supply
 

what we have here is a 500w power supply that works almost on par with it's 600 watt brethren from other manufacturers! Definitely, when taking the efficiency of the power supply into the equation, it actually performs better than a percentage of the 550 watt units out there. It is all in the construction and engineering, and Cooler Master really got their money's worth out of this build!