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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:
$169.99

Customer reviews

Rating 4.8 out of 5 stars with 358 reviews

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Rating by feature

  • 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 12 Showing 221-240 of 358 reviews
  • Pros mentioned:
    Noise level

    Reliable and Easy PSU

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

    Very quiet and reliable power delivery for my components, and easy to organize with the cords marked

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

    Works as intended

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

    I have had no problems so far and I would definitely recommend this to a friend

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

    Easy Installation with only replacing the PSU

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

    fast and easy to install while replacing 5-6 year old psu

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

    Great value for the watts

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

    Love it, works great and for the price is an awesome value.

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

    Great power supply

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

    Will always go to Corsair for power supplies. Never had any issues just needed to upgrade the wattage for my new GPU and CPU

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

    This power supply is amazing

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

    Bought this to power up my gpu and than am building a pc with it works with it

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

    Solid

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

    The cables aren't bundled together. This can actually make cable management easier when space is limited as you have more flexibility. Otherwise, it's a power supply

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

    Corsair RM850x

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

    Works as expected and the maglev fan is relative quiet. The design of the fan cover also helps reduce cage rattle.

    I would recommend this to a friend

  • Great PSU

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

    Corsair has never let me down. My last 650W that I bought in 2016 is still going in my previous build, but it was time for a new build. The new 12+4-pin connector for modern GPUs is very convenient and helps keep cable management clean.

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

    Great product for the price.

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

    Great product fixed all my power issues. Was having video card issues due to being under powwered.

    I would recommend this to a friend

  • 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.

    Looks great, has an adjustment knob for the fan speed on the back, so it can either be silent at idle or keeping it as cool as possible if your setup needs it

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

    Soups good

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

    Cables feels good and are long enough for what is needed. Enough cables for a standard desktop. 10/10 good soup

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

    Great fully modular power supply

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

    I went from 8 power cords in my pc to 4, the wires that plug into the power supply aren’t in a giant sleeve either so the wires are really small and easy to wire manage a whole setup without issue

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

    Get this PSU for custom PC's

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

    I had purchased a fully modular PSU but it did not work unfortunately. When I got this PSU it was perfect.

    I would recommend this to a friend

  • It works perfectly

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

    I bought this for my grandson's gaming computer he was putting together. It works perfectly for him.

    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.

    Has been solid so far. Fan control is great and it does what it’s supposed to do.

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

    Cool air flow

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

    So far so good. The knob on the back surprised me but after some research it works well to keep my set up nice and cool.

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

    power

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

    great supply to power my gaming pc that i upgraded

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

    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.

    had a smaller corsair power supply but games were crashing after updating my video card. this power supply was easy to install and games now running without a hiccup.

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

    Great PSU

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

    Great PSU. Has all the connections you need and is quiet. you can change the sound noise which makes it great.

    I would recommend this to a friend
Page 12, Showing 221-240 of 358 reviews
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