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
  • Luciana A.

    Greater than one week

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

  • Jonathan V.

    > 3 day

    Easy to install being fully modular. Even with 30 series Nvidia GPUs requiring those weird 12 pins. I ended up going with the rm850x because of power needs. Solid device for sure

  • ANDRE THERIAULT

    > 3 day

    Competitive pricing.

  • Evan Katz

    > 3 day

    Great power supply for the price, lots of room for future upgradability, if youre not on a tight budget I HIGHLY SUGGEST buying an aftermarket pair of cables from somewhere like CableMod as the stock ones are super difficult to bend.

  • David

    > 3 day

    Worked perfectly. Fixed my burned out antec PS. Shipped fast. Cables supplied were ample and just fine for me. No excessive stiffness as noted by other reviews. My pc is not a show piece it is a workstation

  • Cesar

    > 3 day

    An improvement to the old design - smaller size 150mm and have 10 yrs warranty. Flat cables is a must for good cable routing. Time will tell if its durable and reliable than my 5yr old seasonic x series.

  • Wilfredo Miranda

    > 3 day

    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!

  • Adam Kent-Canalejo

    13-06-2025

    If you’re looking for a solid reliable PSU that’s not too expensive, this is perfect. Fully modular so you can purchase custom cables if you choose, and sturdy build quality.

  • 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.

  • Prof. Bettye Kassulke Sr.

    > 3 day

    Very easy to install, I had never swapped a power supply but I found it very simple after watching a few YouTube videos

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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