Corsair RMi Series 650 W @ techPowerUp
 

The RM650i is a high-end PSU from Corsair with a digital interface, amazing performance, and silent operation. The cherry on top is the ten year warranty, which is now provided with all Corsair AXi, HXi, RMi, and RMx models.

http://www.techpowerup.com/reviews/Corsair/RM650i/