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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 10 Showing 181-200 of 318 reviews
  • Pros mentioned:
    Noise level

    Quiet and easy

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

    Very easy to install and seems quiet. The amount of cables included is nice but there are a couple different cables that I don't believe was included

    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

  • Great love it!

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

    Love it!! It even has a little fan nob for when my CPU decides it doesn’t like the Backrooms games lol

    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

    Great PSU for My Upgrade!

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

    Top brand at a great price! Allowed me to power my new-gen AMD upgrade. Easy to install and connect with all the modular options.

    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

  • its good

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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.

    Solid PSU. All the cables you need and more. The connectors can be a little snug when plugging in but its fine. Cool that it has a fan with a knob for speed

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

    Safe reliable and cute psu

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

    Solid and reliable. Safe, my prebuilt cheaped out on my psu so I didn’t want some random psu this is powering my rig with a 5070 ti perfectly

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

    Excellent Upgrade

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

    Replaced my 2021 model. Better/thinner cables, daisy chain has 4 slots compared to 3 from my old psu. Another great product from Corsair!

    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

    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
  • 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
  • Pros mentioned:
    Installation ease

    Power supply review

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

    So far so good the RM 850x is a solid power supply easy to install and use. It came with everything I needed and also had it installed in less then ten minutes.

    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:
    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

  • 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:
    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
  • 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

    Very good PSU. Should be cheaper

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

    A very efficient and quiet PSU. Prices have gone up recently but that's with any PC component.

    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
Page 10, Showing 181-200 of 318 reviews
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