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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
Deal ends in 18:20:49

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 7 Showing 121-140 of 358 reviews

  • Quiet PSU with Cable Options

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

    Easy to install, very quiet, and loved the option of cables to use. I did not use them all, and happy with the results of how clean my case now looks on the inside. Would purchase again from this company. Upgraded my 600 PSU to this unit of 850.

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

    Really 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.

    Installation was easy of course, 0 rpm mode makes pc so quiet and it never gets to high temperatures

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

    Good PSU

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

    It's a good PSU it work good with a i9 14900 CPU and a 5070

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

    Great Product

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

    Very quiet and comes with more than enough cords to ensure you have everything you need to properly install.

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

    Powerhouse

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

    This PSU has no power issues at all. I run battlefield 6 with discord and other apps running and it doesn't break a sweat. And for the price its the perfect choice. Would buy again

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

    As advertised

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

    No complaints. It works well, and its quiet. Overall very satisfied

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

    Nice Power Supply. Great Value.

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

    Nice power supply! Easily installed in a Fractal North Mid-Tower case, running an. Loads of long connector cables to reach the motherboard and other devices. Easily powers a Gigabyte X870E AORUS Elite Motherboard with a Ryzen 9 7900X CPU and an Overclocked ASUS Prime GeForce RTX 5070 Ti. Very quiet. Highly recommended.

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

    Perfect for my needs

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

    Does everything I need it to do with no issues. It's a great power supply!

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

    Great PSU

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

    Fan speed adjustment at the back is great! powered my 9800x3d with 5070 ti very well

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

    Solid!

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

    Works great with my build! the grills look cool. Its a power supply, its supposed to be boring. I do think that it was pricey, but thats on bestbuy.

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

    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 great just like any other supply also like that you can adjust fan speed

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

    Awesome supply

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

    Power supply runs quiet, stays cool, and doesn’t trip or have any problems

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

    Works great

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

    Bought after we realized my fiance's old one wouldn't be able to handle his new graphics card. Works as intended.

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

    Quiet and great cables

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

    Quiet, really like the cables that come with this as they are flexible and look nice.

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

    Amazing

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

    Corsair is the best way to go. Modular with plenty of cables. easy to install.

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

    Great Power supply

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

    Easy to install , has new dedicated power cord for Nvidia graphics cards.

    I would recommend this to a friend

  • Great power supply

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

    Had to buy a new power supply to replace my old one when I realized I had thrown away my modular cables for the old power supply. One nitpick, the cables are to loose for my taste, went to Lowe's and got some wire loom tubing

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

    Great PSU

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

    Was nit as complicated as it looked to get set up and it is quiet and amazing.

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

    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.

    No issues, handels all my equipment as needed, and doesnt set my breaker off in my old house

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

    Corsair-RMX RM850x

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

    a powerful power supply. runs the system very well

    I would recommend this to a friend
Page 7, Showing 121-140 of 358 reviews
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