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  • Corsair RM850x is a black and silver computer power supply unit. It is designed to provide power to a motherboard and its components, including SATA/PATA drives and PCIe slots. The unit has a 12V output and is capable of delivering up to 850 watts of power. The Corsair RM850x is a reliable and high-quality power supply for a wide range of computer systems.
  • Corsair RMx Series Power Supplies: Our Best-Selling Power Supplies, Updated. Fully Modular, Low Noise, and Cybenetics Gold-Certified for Reliable Power.
  • ATX 3.1 Certified: ATX 3.1 and PCle 5.1 compliant, ideal for delivering dependable power to current and future top-performing PCs. 100% Japanese 105C Electrolytic Capacitors. ATX 3.1 PCle 5.1 with 12V-2x6.
  • Fully Modular Connectors: SATA/PATA SATA PATA OSI338v0 Connect only what you need using sleek embossed cables with low-profile combs to make installations a breeze. 1x CPU/PCIe / CPU PCIe 12V-2x6 Native 12V-2x6 GPU cable included for use with modern graphics cards such as the NVIDIA GeForce RTX 40 Series.
  • The image features a 140mm low-noise fan with a fluid dynamic bearing and magnetic dome structure that keeps noise to a minimum. The fan also has a Zero RPM mode, which eliminates fan noise completely at low to medium loads.
  • Get more air through the PSU or override the Zero RPM Mode and low-noise profile of the RMx series with our manual fan override knob, increasing fan speed and airflow.
  • FULLY MODULAR CABLING Connect only the cables you need. 1x ATX (24-pin) 2x ATX 12V (4+4-pin) 3x PCIe (6+2-pin) 1x 12V-2x6 (12+4-pin) 2x 4 SATA (Straight) 1x 3 PATA (4-pin)
  • WORLD-CLASS 24/7 CUSTOMER SUPPORT O COUNTRY LOCAL CORSAIR 10 GUARANTED REGULATIONS YEARS ARE APPLICABLE WORLD-CLASS SUPPORT Our award-winning service means you can enjoy your gear worry-free.
  • CORSAIR X RM850x
  • CORSAIR RM850x
  • The text on the image reads "Corsair RM850x / CPU PCle a CUNDIGAT - NIONTO HYSOO SATA/PATA / SATA, AIL PATA nv ONLY MOTHERBOARD 12V-2x6."
  • Alt View 21. CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black.
  • Alt View 22. CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black.
  • Alt View 23. CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black.
  • The text on the image reads: "MOTHERBOARD 12V-2x6 CPU PU/ PCle / SATA/PATA / PATA DESIGNED FOR USE WITH GENUINE CORSAIR TYPE 4 CABLE SETS ONLY."
  • Corsair RM850x
  • The image shows a variety of Corsair products, including a box and several cords. There are a total of 12 cords, with some of them being black and white. The cords are arranged in a row, and they are all connected to a single box. The box is placed in the middle of the scene, surrounded by the cords. The arrangement suggests that these cords are part of a larger electronic system or setup.

CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

Model:
CP-9020270-NA
SKU:
6587623
Highly rated by customers for:
$135.99
Save $34
Comp. Value: $169.99

Customer reviews

Rating 4.8 out of 5 stars with 318 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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95%would recommend to a friend

Customers are saying

Customers enjoy the RMx Series RM850x power supply for its overall performance and quiet operation, with many appreciating the zero fan mode. The fully modular cables also make cable management easier, and the installation process is straightforward. With its adjustable fan and good modularity, this power supply is a popular choice for those needing ample power.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 14 Showing 261-280 of 318 reviews

  • Great

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love that the geek squad walked us through every step of my sons custom build computer.. I do t know all the lingo basically there for support and to pay. My son loves it

    I would recommend this to a friend

  • Almost Perfect

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Not enough for me but perfect for you! Check what your total overhead is with PCPartpicker before you choose a psu

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Power Supply

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great! Using it very day! Price was descent.

    I would recommend this to a friend

  • Good PSU

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Pretty good and customisable PSU. Wasn't too big a fan of the cables that were supplied. But I didn't pay attention to what kind they were when I bought it

    I would recommend this to a friend

  • good PSU

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Goated. Corsair makes good stuff. Was painless to get it from best buy

    I would recommend this to a friend

  • Good PSU open for upgrades!

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good PSU for current components and futre upgrades

    I would recommend this to a friend

  • Grat power supply

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great power supply. Stable power, modular design. Has the best capacitors on the market so you can be rest assured it will hold up long term. Highly recommend this over the cheaper version of corsair power supplies.

    I would recommend this to a friend

  • PSU

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So far its kept my pc alive outside of my previous rm 750 which lasted me 7 years, hoping this does the same

    I would recommend this to a friend

  • Good psu

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Haven’t had a single power issue with this and I can use it safely

    I would recommend this to a friend

  • Seems to be fine now

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I was having connection issues at first, as my gpu would cut in and out on bootup. I couldn’t figure out the exact cause since the connectors seemed to be fully seated. I had to remove the psu, unplug and replug everything in order to fix the issue. No issues since, hopefully it stays that way.

    I would recommend this to a friend

  • Good PSU

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Came with everything I need! Hasn’t given me any problems yet and build quality felt nice

    I would recommend this to a friend

  • Good PSU

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Price at the time of purchase was spot on with Amazon, so it was much more convenient since already at the store to pick it up along with other items.

    I would recommend this to a friend

  • Possibly Defective Out of the Box

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Unfortunately, I had to return this power supply. I unhooked the old psu and setup thus new Corsair. I triple-checked everything; making sure I plugged in the correct wires, everything was firmly plugged in, etc. However, no matter what I tried, the PSU would only turn on for a couple seconds and immediately shut off. The fans, rgb lights, CPU fan, etc. all turn on for those couple of seconds. I also individually tested all of my components and unplugged anything unnecessary to see if that would work. After a few days of testing multiple times, the psu would never stay on. In addition, I also tried the same tests with my old PSU and it turned everything on flawlessly each time. I am not sure if there was something involving my build that made this psu incompatible, but I am doubtful. All the connectors fit perfectly and my old psu was only 600w. I am not sure if trying another Corsair is worth it.

    No, I would not recommend this to a friend
    • Brand response from Corsair
      Posted .

      Hello,

      Did you use the cables that came with the new PSU only? If you need any assistance, do contact our team directly on our site via ticket!

      -Art CorsairGaming

  • Review

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great psu would recommend to anyone! I love the fan feature

    I would recommend this to a friend

  • Good Purchase

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have had no issues with this power supply. It was easy to install and everything was in the package.

    I would recommend this to a friend

  • Beast of a pcu

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a beast of a product. Turned out I didn't need it so I made a return. I will probably be back for it if I get a 4090!

    I would recommend this to a friend

  • Very Good PSU

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great PSU, powers my PC very good. Corsair Very good.

    I would recommend this to a friend

  • Corsair 850x

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Its the GOAT, for mid tear rigs cant go wrong for the price and power.

    I would recommend this to a friend

  • Easy Nice PSU

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to set up, has all the cables I needed. Great budget PSU

    I would recommend this to a friend

  • So far so good

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very nice power supply with lots of cables to hook up or not..

    I would recommend this to a friend
Page 14, Showing 261-280 of 318 reviews
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