Corsair RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black

(433 Reviews)

Price
$121.79

Quantity
(10000 available )

Total Price
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1580 Ratings
1159
123
48
37
213
Reviews
  • Luciana A.

    11-06-2025

    We have a RMx750, RMx850, and now the RMx1000. Great product!

  • robertjrussell

    Greater than one week

    recd item in new cond next day A++

  • H Winter

    > 3 day

    Does the job. Easy to install and enough cables for all of your accessories.

  • F. Angel

    > 3 day

    Un buen producto que diera corriente y voltajes estables para un equipo delicado y sensible como es la computadora. Hasta ahora ha funcionado perfectamente. Me gustó mucho lo modular, además que es de color homogéneo. Lo que no me gustó mucho, es que los cables son muy rígidos y podían ser de mejor vista y flexibilidad para dar una mejor estética al interior del chasis de la PC. Fuera de eso, estoy satisfecho con la buena funcionalidad y protección a mi equipo. Si en los futuros meses pasa algo diferente, vendré a editar esta reseña.

  • Cody

    > 3 day

    Absolutely no complaints. Modular design allows for cable control, large fan keeps things cool and runs very quiet. Never had any problems in over a year of near continuous use.

  • Chris J

    Greater than one week

    Super quiet and i hardly even notice it compared to my previous P.S. Simple to connect with lots of options available.

  • Mohd Al Hajeri

    > 3 day

    The PSU is really quiet

  • IowaDirt99

    Greater than one week

    Nosie level while not under any kind of load is about normal for fan noise for a power supply. If you ever get it to a higher load then you might get a little more noise but what doesnt get more noisier when you put it under a load for power usage. I was running a 500w power supply before this one but it was a nock off of another company. An nearly fried my pc.

  • mang

    > 3 day

    So quiet because the fan doesnt even run most of the time. Even when it does, it adds little to no additional noise. However, beware because the cables are pretty stiff. SATA power connectors were right angle connectors so it gave me some difficulty with positioning RGB hubs. The 24 pin cable pins looked bent slightly and made quite difficult plugging it into the motherboard. I will not enjoy trying to unplug it.

  • Alessa

    > 3 day

    Feels very premium but the chords are a little intimidating to attach

Corsair RM850x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. Using only Japanese 105 Degree C capacitors, users can depend on an RM850x PSUs" long life and reliability, backed by a ten year warranty. 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. Fully modular cables make PC builds and upgrades easy, as you only need to install the cables your system requires. Quiet, efficient and dependable, an RM850x PSU has everything you need to power your high performance PC for years to come.

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