Corsair 850 Watt RM850x 80+ Gold Fully Modular ATX Power Supply/PSU
850W Corsair RMx Series RM850x, Full Modular, 80PLUS Gold, SLI/CrossFire, Single Rail, 70.8A, 135mm Fan, ATX PSU
- By DPD to your specified address. | £5.48 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout
- Collect instore Collect from our Bolton store, BL6 6PE | Free
- UPS and DPD Pickup Pickup from local convenience store | £4.79
RM850x - Corsair Power Supply - Fully Modular ATX PSU

Corsair RMx 850W Power SupplyCORSAIR RM850x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC to reduce costs and excess heat. Fully modular cables make PC builds and upgrades easy, as you only need to install the cables your system requires. Zero RPM Mode means an RM850x series PSU is virtually silent at low and medium loads, and even at maximum power, a low noise fan ensures quiet operation. Quiet, efficient and dependable, an RM850x PSU has everything you need to power your high-performance PC for years to come.
This PSU is also available in the 750W version :
RMX 750W
Fully Modular Connectivity

KEEP YOUR BUILD LOOKING CLEAN The fully modular design of the RMx power supply means that during your build you can mount the PSU in the case first and then attatch only the cables you need, making builds and upgrades easy with great looking results. Simply connect the cables you need and keep the rest safe for future upgrades.
Compact Size

TEN-YEAR WARRANTY A 160mm-long casing ensures an easy fit in almost all modern enthusiast PC cases. Your guarantee of reliable operation that will last across several system builds.
Completely Modular

BUILD LIKE A PRO Only connect the cables your system needs, making clean and tidy builds easier whilst improving airflow.
RM850x Efficiency & Noise Graphs
RM850x EFFICIENCY

RM850x NOISE

Corsair RM850x Key Features
Corsair Quality

80 PLUS Gold CertifiedGold certification ensures high efficiency operation for less excess heat and lower operating costs.

Japanese 105°C capacitorsPremium internal components ensure solid power delivery and long term reliability.

Zero RPM Fan ModeFan doesn’t turn on until it’s needed, so you’ll enjoy virtually silent operation at low and medium loads.

Corsair 10 Year GuaranteeYour guarantee of reliable operation that will last across several system builds.