Corsair Professional Series Gold AX 650 W @ techPowerUp
 

Corsair's Professional Gold series consists of four PSUs with the most recent addition being the AX650, which as its name implies has 650W capacity. Since more and more users finally find out that they actually need a mid-wattage unit to power their systems, Corsair decided to offer a high quality PSU which addresses all the enthusiasts who defy cost and seek the best possible performance along with top efficiency.

http://www.techpowerup.com/reviews/Corsair/AX650/