We review the RM850x power supply from Corsair. This 2018 update for the RM series now is offered in a silent RMx series that comes with 80plus Gold certification.

The silent RMx series is offered in five models, the RM550x, RM650x, RM750x, RM850x (all 16cm in length) and A 180mm-long casing for the RM1000x. The numbers in the product names obviously refer to its maximum wattage. It is a Gold certified product series, that means it's 90% efficient at 50% load, hey efficiency matters; years ago PSUs were as low as 70% efficient, meaning that 30% of the used power simply vanishes and is lost in space, whilst you are paying for it on that electricity bill. If your components internally eat away 500W then with that 70% efficient product you'd actually use 650W. With a 90% efficiency, you just saved 100 Watts. The PSU itself is 100% modular as well, for most of you with a side panel window in their chassis a must really as you'll want modular cables. 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.