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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 How to Build a PC - How To Video video 1 minutes 34 seconds

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

Model:
CP-9020270-NA
SKU:
6587623
Highly rated by customers for:
$149.99
Save $20
The comparable value is $169.99
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Customer reviews

Rating 4.8 out of 5 stars with 358 reviews

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  • Value

    Rating 4.7 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 are delighted by the RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply's overall performance, noting that their computers run perfectly. They appreciate its quiet operation, even when the system is under heavy use, and find the cable management to be very easy. Additionally, customers find the installation to be easy and like the adjustable fan.

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 10 Showing 181-200 of 358 reviews
  • Pros mentioned:
    Noise level

    Must buy

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

    Great power supply replaced a noisy evga unit (coil while).

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

    Great psu

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

    Great power supply it does everything that I need and has plenty of power

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

    GREAT PRODUCT

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

    Has been working like a champpppp!!! NO COMPLAINTS

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Convenient and quiet.

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

    Upgraded PSU’s and I haven’t heard a peep out of this one! Was very easy to install.

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

    Working great

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

    Replaced a faulty power supply and it's working great.

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

    Wonderful

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

    Had to replace mine and this one has been amazing and was very easy to install!

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

    Great low/mid budget option!

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

    Purchased this power supply for my first build back in 2021 and it's still running just as good as it did the day I bought it! 10/10 would recommend and will continue to purchase Corsair PSUs.

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

    high quality

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

    good price, works great, and has high quality japan capacitors

    I would recommend this to a friend

  • Always stick to the good brands

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

    I only trust Corsair with PSUs they haven’t destroyed my PCs even when they fail. Never skimp out on these go Corsair, EVGA, or seasonic.

    I would recommend this to a friend
  • Pros mentioned:
    Power supply capacity

    Great Power Supply

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

    This affordable power supply was great and just what i needed for my 5080

    I would recommend this to a friend

  • Just what i needed!

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

    Excellent PSU. Modular is the way. I had an old thermaltake power supply that was only 650w with my 6800xt. This one paired with my new 9070xt OC from Gigabyte definitely does the job for me!

    I would recommend this to a friend

  • Good PSU, Modular Design Keeps Things Neat

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

    Really enjoy the modular design. My last PSU made so much clutter by not having removable power cords. No issues with install or use.

    I would recommend this to a friend

  • Japanese capacitors

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

    I always get the RMx version of Corsair's power supply. Very dependable and very modular

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Value for money PSU

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

    I am using the RM850x PSU in my new build with 9900x and 5080 FE. It includes the 12VHPWR connector required for 5080FE. The PSU is almost silent even during heavy gaming.

    I would recommend this to a friend
  • Pros mentioned:
    Cable management

    Excellent PSU - You will regret buying a cheap one

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

    High quality with no issues. Getting modular is so much better and the cables provided are of extreme quality, like the PSU itself. Would definitely buy again!

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

    You Can't Go Wrong with RMx

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

    Truly fantastic. This is the 2024 refresh (if memory serves), with the 12V-2x6 native for the newest generation of GPUs. You really can't go wrong with the Corsair RMx series. Completely recommend.

    I would recommend this to a friend

  • Great for the 9070 XT!!

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Had to go thru 2 other Power supplies before I got this one because the 9070 XT Gigabyte Gaming OC needs x3 8pin connectors & the other power supply’s only had 2 of them. Also cable management on this PSU is great! I thought about buying cable extensions but after opening the box I was supper happy with how the included cables looked that I did not need to buy the extensions.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Very well built and low sound level

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

    Very well built and very low sound level. Many parts included to make sure connecting is not a issue

    I would recommend this to a friend
  • Pros mentioned:
    Installation ease
    Best Buy Employee

    Easy and works.

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

    [Employee of bestbuy] Easy to install and no problems, love the modular design.

    I would recommend this to a friend

  • 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.

    Works perfect and comes with all the wiring that youill need 10/10

    I would recommend this to a friend
Page 10, Showing 181-200 of 358 reviews
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