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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:
Your price for this item is $169.99

Customer reviews

Rating 4.8 out of 5 stars with 268 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 4.7 out of 5 stars

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95%would recommend to a friend

Customers are saying

Customers commend the RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply for its excellent overall performance, making computers run perfectly. The power supply also stands out due to its fully modular cables that simplify cable management and its impressively quiet operation, featuring a desirable zero fan mode. Furthermore, users appreciate the ease of installation and the substantial power capacity it provides.

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 5 Showing 81-100 of 268 reviews
  • Pros mentioned:
    Installation ease, Power supply capacity

    Beast!

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

    What a beast of a PSU! I loved this thing and it is more than enough for my build. It is also really easy to install!

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

    Great

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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 needed to replace my old one it was easy to install

    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.

    Great psu i have owned. Im sure there are other with higher output than it. But for my needs it is just great. No issues what so ever. Very quiet and enough for what i am currently running on my pc. If i ever need a new one would definitely use that same type/model perhaps on with more wattage but don't think i will unless i do a completely newer upgrade of my pc. So overall very happy with this psu

    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:
    Power supply capacity

    good ol' reliable

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

    Good psu, reliable brand such as corsair and can power your 50 series graphic cards, mine being a rtx 5070

    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:
    Cable management

    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.

    This is a great power supply, perfect for many people. I highly recommend a fully modular PSU, as that way you only need to connect the power cables you need and do not have extra cables in your PC case. Fan speed is adjustable.

    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:
    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:
    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

    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:
    Overall performance

    Easy installation

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

    Needed to replace my old one and fortunately was able to pick this up. Installation was simple and computer has been running perfectly.

    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, 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
  • Pros mentioned:
    Noise level

    Great product, convenient curbside pick up.

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

    High performance and very quiet. Enough cable to get the job done but not too much so it’s in the way. Curbside pickup was super easy too!

    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
  • 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 product

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

    Bought this as a replacement for my old one while doing a case swap. Great quality product and love the look of the cables as well as the optional fan speed adjuster.

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

    Great Power Supply.

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

    Great Product, easy to install and great for anyone who is building their pc or needs a new ps.

    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
Page 5, Showing 81-100 of 268 reviews
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