We review the Corsair RM 650 GOLD power supply. Yes, the silent and even high-end RM 650 comes Gold certified, that means it’s 90% efficient at 50% load. Efficiency matters. The PSU itself is even 100% modular, for most of you with a side panel window in their chassis a must really as you’ll want modular cables. The PSU also improved on the audibility front. Have a peek at the article. Corsair has many PSU lines these days, it is a large chunk of their business. Amongst the product lines there is the Corsair Professional Series RM PSUs. The SKUs are re-injected into that always updating line-up.