Corsair 850W Enthusiast RMx Series RM850X PSU, Rifle Bearing Fan, Fully Modular, White, 80+ Gold


62 in stock

SKU: CP-9020188-UK Categories: ,
Pristine White Casing 
Now available in an elegant white finish to make your build truly stand out.
Tuned for Low Noise Operation 
A specially set fan curve ensures that, even at full load, fan noise is kept to a minimum.
80 Plus Platinum
The RMx White can deliver power with over 90% efficiency, lowering energy consumption, noise, temperatures, and your power bill.
100% All Japanese Capacitors
By using high-end electrolytic capacitors, the RM750x delivers the unwavering power and long-term reliability you’ve come to expect from a CORSAIR power supply.
Zero RPM Fan Mode
At low and medium loads the RM750x’s cooling fan doesn’t spin until you need it, for near-silent operation.
Fully Modular, Flat Cables
Flexible fully modular, flat white cables mean that you only connect the cables your system needs, making clean and tidy builds easier.
Ten-Year Warranty
CORSAIR offers a ten-year warranty on all RMx series power supplies, your guarantee of reliable operation that will last across several system builds. If you run into any problems during the installation or use of an RMx power supply, CORSAIR global customer support is ready to help.




  • Form Factor: ATX
  • Modular: Fully Modular
  • Series: Corsair RMx
  • Compatability: ATX12V v2.4 and EPS 2.92
  • Wattage: 850 W
  • Connectors: 2 x 4+4-pin CPU +12V (EPS)
    8 x 4-pin Molex
    6 x 6+2-pin PCIe
    10 x SATA
  • Rail Design: Single Rail
  • PFC: Active PFC
  • Fan Type: 135mm Rifle Bearing Fan
  • Fan Bearing: Rifle Bearing
  • 80+ Certification: 80+ Gold
  • Efficiency: Up to 92%
  • MTBF: “100,000 hours”
  • Features: See Overview
  • Package Contents: RMx Series ATX Power Supply
    Power cord
    Mounting screws
    Cable ties
    Corsair case badge
    User manual
  • Weight/Dimensions: 150 x 86 x 150mm
  • Package Weight: 3.3000 kg
  • Warranty: 10 Years
Weight3.3000 kg
Form Factor


80+ Certification

80+ Gold


10 Years

Package Weight

3.3000 kg


150 x 86 x 150mm

Package Contents

RMx Series ATX Power SupplyPower cordMounting screwsCable tiesCorsair case badgeUser manual


See Overview


"100, 000 hours"


Up To 92%

Fan Bearing

Rifle Bearing


Fully Modular

Fan Type

135mm Rifle Bearing Fan


Active PFC

Rail Design

Single Rail


2 x 4+4-pin CPU +12V (EPS)8 x 4-pin Molex6 x 6+2-pin PCIe10 x SATA


850 W


ATX12V v2.4 and EPS 2.92


Corsair RMx




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