We review the Corsair RM650 GOLD power supply. Yes, the silent and a bit mainstream RM650 is now Gold certified, that means it's 90% efficient at 50% load. Efficiency matters. The PSU itself is partly modular, for most of you with a side panel window in their chassis a must really as you'll want modular cables. The new PSU also improved on the audibility front. Have a peek at the article.