Cooler Master G550M 550W Power Supply Review
 

We have just put the finishing touches on our evaluation of the Cooler Master G550M 550W power supply. If a new PSU is in the cards for you, make sure you take a moment to read this before you do any shopping. Today we spend our time with a computer power supply from Cooler Master that is towards the lower end of the wattage scale coming in at 550 watts. Cooler Master claims "notably higher efficiency and voltage stability than other designs." We will see if its Bronze efficiency G550M PSU will stand up to our gauntlet and its own claims.

http://www.hardocp.com/news/2015/06/...supply_review/