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

(0 Reviews)

Price
$121.79

Quantity
(10000 available )

Total Price
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1580 Ratings
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Reviews
  • Wilfredo Miranda

    11-06-2025

    This is by far one of the quietest ATX power supplies I have ever purchased at this power level. It is small and the modular cables are very space-saving!

  • Camylle Cormier II

    > 3 day

    I purchased this in feb 2020 so not even a full year. It randomly died and won’t power. Waste of 150 bucks

  • Andre

    10-06-2025

    ive had this psu for 4 years now and its still running silent with no coil whine, like my cheap corsair CX power supply had. unless you are running a 3080, this psu is plenty!

  • eduardo

    Greater than one week

    Es de las mejores fuentes 100% recomendable

  • F

    > 3 day

    Could be a tad cheaper, other than that its great in terms of noise and ease of installation

  • Sash

    > 3 day

    Wires are very-very hard, there is no elasticity at all, so its very hard to install pin connectors in place so if you want to have good cable management then consider buying other PSU, or separate connectors.

  • Jeremy Alexander Walcott

    > 3 day

    It was working well for the first two weeks then it just completely caused my PC to shutdown while I was running Microsoft flight simulator even with the fans off. I will be returning this and will look else where!

  • michael cardone

    > 3 day

    THIS PSU DIED IN LESS THAN A YR.

  • Logan T.

    > 3 day

    Great power supply easy to install

  • Overthinker

    > 3 day

    I love this PSU

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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