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)

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$121.79

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(10000 available )

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1580 Ratings
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Reviews
  • Carlos L. Torres Gonzalez

    04-04-2025

    Used it for exactly 2 days, PC was idle and it suddenly turned off. Tried turning it off and on, different power outlets, unplugged cables one by one to see if there was a short, and nothing, just a click sound. Finally tested it with just the paper clip and an external fan, and same thing, just click. Swapped it out for another PSU I had around, and the PC turned on. Unfortunately this is not my first Corsair thats failed this soon, brother also bought a Corsair RM750 and died less than 3 months. Disappointed.

  • Jonathon Dixon

    > 3 day

    the psu makes a clicking noise normally when booting up but 3 weeks in for 2 days it started immediately shutting off after turning on with a double click noise but then it went back to normal. Besides that its extremely stable power wise and works extremely well for gaming.

  • Colin

    > 3 day

    Arrived when expected, performs as expected.

  • Vivienne Berge

    > 3 day

    Have run it for 4 months ... no issues ... its quite and as cool as can be expected at its wattage level.

  • Mason

    > 3 day

    I bought the 750w from EVGA. It tested positive and when I installed, nothing worked. I returned it and bought this. Guess what? It works. Switching to Corsair from now on. Very good brand you can trust.

  • Timothy Meredith

    Greater than one week

    Been using corsair for well over 10 years and over that time I purchased tens of thousands of dollars of corsair equipment. Owned my own computer store and sold hundreds of custom rigs with corsair power supplies, cases, watercoolers, ram, etc. All thats over now since they wouldnt honor a warranty on a H115i with a 5 year warranty when the pump failed 2.5 years in. First they told me to shake it (the pump is dead dead), so when that didnt work they refused to replace it. Other reviewers are right that they arent the same company anymore.

  • B. Stevens

    > 3 day

    Been in the system for 6 months, does what it’s supposed to.

  • Rhianna

    > 3 day

    The first one I ordered arrived in the Corsair box, everything looked like it was in great condition and it was really easy to install. I got it all hooked up and when I pressed the power button, the power supply made a popping sound and the entire room filled with a burnt plastic smell. Obviously the computer didn’t turn on lol.

  • aland Hirori

    > 3 day

    I have had this for almost 3 months so far working as it should pretty solid , very quite so far no problems

  • Thomas

    > 3 day

    I build alot of computers and Ive never has an issue with corsair psus. I prefer evga by a long shot. the cables are better and unit to me feels better. only reason I gave 4 stars instead of 5 is the cables. unit works great

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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