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  • Front. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 11. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
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  • Alt View 18. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 19. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
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  • Alt View 23. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 24. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
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  • Alt View 29. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Step-by-Step Instructions to Build a PC video 6 minutes 35 seconds
  • CORSAIR How to Build a PC - How To Video video 1 minutes 34 seconds

CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black

Model:
CP-9020200-NA
SKU:
6459244
Highly rated by customers for:
Your price for this item is $149.99

Customer reviews

Rating 4.8 out of 5 stars with 1782 reviews

Rating Filter

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

Pros mentioned filter

Cons mentioned filter

96%would recommend to a friend

Customers are saying

Customers frequently mention the RMx Series RM850x's excellent performance and quiet operation as major strengths. Its fully modular design and ease of installation are also frequently praised, simplifying cable management and the overall building process. While some users noted its larger size, the positive feedback overwhelmingly focuses on its reliability and value. The power supply is considered a great option for its price point.

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 1,782 reviews
  • Pros mentioned:
    Performance

    Overall good PSU

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

    Great power supply, needed one with the additional 4 pin for the cpu. Good affordable and reliable psu.

    I would recommend this to a friend
  • Pros mentioned:
    Modular, Performance

    Great Modular PSU

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

    Modular is the only way to go - always overpower your system to prevent failing on spikes

    I would recommend this to a friend
  • Pros mentioned:
    Modular

    Nice 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.

    good price, modular 850 watt power supply. Use only the cables you need to keep your build looking nice.

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

    great product A+++

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

    Does the job well, really quiet, have not had any problems with it. Might be overkill for my system, 3060ti, but better safe than sorry.

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

    A no brainer PSU

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

    I saw reviews about this psu online and i had to grab it after i upgraded my build to a 7800 xt. Absolutely quiet when browsing and watching youtube, and also quiet when running intensive games like cyberpunk, etc…. Cables are a little stiff so i recommend cable extensions. Would definitely recommend someone shell out a lil bit more money and purchase this psu

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Modular

    Corsair has been my go to PSU for awhile now

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

    Easy to use. Fully modular for easy buulding. They do their jobs in the background. They soldier on through the thick of it.

    I would recommend this to a friend

  • great quality psu

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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 it works fine, it’s really just a power supply. came with lots of cables but if you want a 4pin cable for the cpu maybe you’d have to separate an 8pin cable into 2 which was kinda confusing. it hasn’t exploded or lit on fire yet which is good and what i would expect from a reputable brand like corsair

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Best PSU for its price

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

    Really dependable PSU and great for the price. Definitely will buy from Corsair again

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Performance

    Power supply

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy install. Working great so far, no problems with unit.

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

    reliable psu

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

    the rm850e is smaller and worked better for our build, with that said this one we purchased and then returned after realizing the size difference, all in all reliable psu

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Modular

    Solid 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 my first modular power supply and switching to this really made my build come out a lot cleaner. It’s much easier to work with only the cables you actually need.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Power supply

    Nice and easy

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

    Plenty of power for what I needed and very convenient and easy to both aquire and set up

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Good buy

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

    Bought to upgrade the specs on my pc and worked perfect.

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

    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.

    Reliable, more than enough power especially for the price, great product!

    I would recommend this to a friend

  • Corsair Never Disappoints

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Been using it strong for 3+ years now Corsair has the best psu’s no brand can compare anymore.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Would recommend for someone making a pc

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

    This product works well, quite worth the price. Easy to install. Highly recommend

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    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.

    great product, excellent quality-price ratio, fully modular which allows for greater ease of cable management, easy to install, clear instructions, I would recommend it 100%

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

    Corsiar RM850X Works great

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

    I got a new motherboard and my old power supply which was great didn't have 2x ATX 12V/EPS12V (4+4-pin) Connectors which this new one does. I had no issues installing it and it drives my new equipment with power to spare.

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

    Always Dependable PSU Brand

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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 first brand I think about whenever I need a new power supply for my PC builds. I have built my own PC for years now and I can always trust a Corsair PSU to power up my components without any issues. And their cabling, while not always the prettiest in some cases, will never have any issues even on the newest high-end GPUs out there. Corsair PSUs for the Win!

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use
    Best Buy Employee

    Great power supply

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

    Great power supply easy to fit into pc case and cable managment easier due to removable wiring

    I would recommend this to a friend
Page 12, Showing 221-240 of 1,782 reviews
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