TechPowerUp posted a review on the Corsair RM Series 650 W
A quote from the article:
Corsair is doing their best to dominate the PSU market by constantly releasing new PSU lines, covering all needs and every price range. The RM line addresses users looking for an inaudible PSU at a good price. Today, we will test the RM650: It is 80 Plus Gold certified and features a fully modular cabling system.Corsair RM Series 650 W @ techPowerUp