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

(1844 Reviews)

Price
$121.79

Quantity
(10000 available )

Total Price
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1580 Ratings
1159
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48
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213
Reviews
  • Michael

    > 24 hour

    Installed the PSU in a system that should draw 550~600 watts under load and noticed a few months later that some of the plastics in the unit had melted. Seemed to be something that a power coil was wrapped around. PSU is still functional but I certainly dont trust it enough to use it again. Recommend you go with EVGA instead.

  • Vinton

    > 24 hour

    item was dead on arrival, I figured it must have been my pin connections to the mother board. but when I swapped it out for my older Thermaltake PSU, my PC worked flawlessly. This PSU did not work in my older pc. Absolutely nothing, not boot up, no fan spin, no visible or audible signal from my PC nor the older PC. Buy if you want, but be informed that you may get a defective item.

  • Adam

    > 24 hour

    I purchased this PSU as an upgrade from the factory unit in my Dell Optiplex 7010 MT. If you are looking to put one of these in this same type of PC, a word of warning: this PSU barely fits. I thought I would actually have to return it, but I was able to squeeze it in while sliding the side panel latch forward. Luckily, the latch still moves back enough to allow the side panel to stay closed, but the latch does rest against the PSU.

  • 8thGenSi

    > 24 hour

    Solid power, good build quality (the cheap caps on my old Zalman are what took it out).

  • Hanna

    > 24 hour

    Very silent. Fan starts working under voltage load only.

  • Ben W.

    > 24 hour

    Stronk power supply. Been running strong for 5 months now. Easy to install.

  • Jimmy N.

    > 24 hour

    We used nothing but Corsair power supplies at my work. We never had any issues whatsoever. Its quiet and handles all my components with plenty power. I love that its small and just as powerful as an ATX power supply.

  • private name

    > 24 hour

    What I needed, perfect

  • V

    > 24 hour

    Bought this POS because it was highly recommended and Corsair has a good reputation as a brand for a top of the line PC build (x570 mobo, ryzen 9, etc). The first one died the day after installing it, after my computer went into sleep mode and something must have tripped electronically because it went dead instead. Replaced it, second one seemed to be working fine for a week, then the lights flickered for a minute and the thing completely died again. Both times, it was on a name-brand surge protector and was the only device that had an issue. I had another of these PSUs on hand for a duplicate build, but Im returning it and this DOA one. The 8-year-old Rosewill PSU plugged into an almost decade-old build thats been running 24/7 next to this brand new build 4x the price had no problems through these little flickers, despite being on an off-brand surge protector. One could have been a fluke, but two in a row going completely dead over the tiniest fluctuation in power says its a build problem. Im not rolling the dice with another and letting it fry my motherboard this time.

  • Cody brown

    > 24 hour

    Little expensive but have had no problems would recommend

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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