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

(1967 Reviews)

Price
$121.79

Quantity
(10000 available )

Total Price
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1580 Ratings
1159
123
48
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213
Reviews
  • fablu23

    10-06-2025

    I upgraded from an older Corsair PSU that had pretty noticeable bearing noise on the fan. I figured after 7 years its time was up so I went with this highly praise PSU. 750W is enough to power even the beefiest of systems thanks to increasingly efficient components. My new rig has a focus on silence so a power supply with zero RPM fan mode was a must. I have no regrets since putting this in my system a few months ago.

  • christian

    > 3 day

    fonctionne bien

  • Matt

    > 3 day

    I purchased this PSU in early February 2021. I was in the middle of a build and wanted a PSU that had the ability to handle the growth of my build. I couldnt be happier! It has handled every thing that I have thrown at it without any issues. Installation into my my Phantecks Enthoo Pro m was a little time consuming, but not difficult. This PSU has shown its reliability and I know it will handle any future upgrades.

  • KDow

    > 3 day

    I ordered this to replace a very noisy evga PSU i had bought only a month ago. Its a night and day difference. Not only was it visually impressive but its absolutely silent, even under intense gaming sessions its just a nice quiet hum as it pumps out all the juice youll need.

  • Prof. Patsy Jakubowski

    11-06-2025

    I used to trust corsair which is why I went with this psu. Upon installing, routing cables, and then powering on (or rather try to power on) I found of my unit was defective. I would be able to look past a mouse not working but a power supply? Inexcusable. Avoid this product at all costs. Corsair is laughing all the way to the bank with your money. Tried the same setup with another psu and it fired right up. Corsair has forever lost a customer.

  • GMS

    > 3 day

    I couldnt find anything to complain about during installation. Plenty of cables are supplied and are long enough for a full size tower. It runs quietly enough. Placed under my desk, I dont notice added noise from the fan. I am happy with it.

  • Ronald Reagans Sweatpants

    Greater than one week

    The manual for the rm650x says included cables are

  • Zhang Nan

    > 3 day

    Good quality

  • Never Received

    > 3 day

    I have been very pleased with the performance over the past few months. Very quiet as well

  • Anu Martin

    Greater than one week

    I got RMX1000 for INR 9,700, i believe its great deal i checked on amazon.com its have almost 13K price point...

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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