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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 8 Showing 141-160 of 358 reviews
  • Pros mentioned:
    Overall performance

    Replacement was good

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

    First one was doa but the replacement works great!

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

    Above expectations

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

    Functioning perfectly, and quiet. First time using a component based PSU and love the flexibility and cable reduction in my case. Would definitely buy again.

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

    Power supply unit

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

    Most needed upgrade. I can now run up my electric bill.

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

    Very Reliable

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

    Straightfoward, reliable, does the job well and without complications.

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

    Great 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.

    It is working great, very simple to install. Love it.

    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:
    Cable management

    Power supply

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

    The power supply was awesome nothing looked cheap on it easy to do cable Managment

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

    Love Corsair

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

    Now issues really easy to use. Current set up with a 5070ti and ryzen 7 9800x3D

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

    Great option for the price

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

    Great choice for my pc upgrade. I really love the cabling

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

    10/10 but again

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

    Would highly recommend Had for over a year now and no issues at all

    I would recommend this to a friend

  • Great value

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

    I bought evga and have had to rma twice now, my old rm750x has been my back up for years now never failed, so I'm going to stay corsair for power supply and ram. This power supply made my graphic's card perfom better and run cooler I swear.

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

    madflac

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

    I eventually returned mine for the corsair 1000x psu, but this one worked out extremely well for me while I had it. No issues, easy to control the watt output, and it's very reliable. Great for all budget builds and a couple of higher end pc builds as well.

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

    Would recommend

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

    Excellent quality. Runs super quiet and came with everything I needed for my new setup.

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

    Powerunit

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

    Worked as expected like the modular set removes unneeded cabless

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

    Great

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

    Excellent power supply. Gold rated. Highly rated in the psu tier list.

    I would recommend this to a friend

  • Corsair 850W PSU

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

    This is a great PSU. It’s reliable and supports my PC perfectly. No coil whine. Fully modular means no extra cables cluttering up the case. Definitely worth the price.

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

    Awesome PSU

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

    Great product! awsome if you on a budget and works great

    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:
    Overall performance

    power supply

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

    Bought this for my son pc and he’s having no issues with it!

    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
Page 8, Showing 141-160 of 358 reviews
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