Refund Refresh 4-Day SaleEnds Monday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Front. CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - Black.
  • Alt View 11. CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - Black.
  • Alt View 12. CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - Black.
  • Alt View 13. CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - Black.
  • Alt View 14. CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - Black.
  • Alt View 15. CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - Black.
  • Alt View 16. CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - Black.
  • How to Choose the Right Power Supply video 5 minutes 00 seconds
  • Corsair Cable Management video 1 minutes 03 seconds
  • CORSAIR How to Build a PC - How To Video video 1 minutes 34 seconds

CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - Black

Model:
CP-9020180-NA
SKU:
6229601
Highly rated by customers for:
Loading...

Customer reviews

Rating 4.8 out of 5 stars with 1846 reviews

Rating Filter

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

Pros mentioned filter

Cons mentioned filter

96%would recommend to a friend

Customers are saying

Customers are pleased with the RMx Series 850W power supply's ample power, modular design, and quiet operation. Many appreciate the high-quality components and easy installation. While some users reported an audible coil whine, the majority found the unit to run cool and efficiently. The positive feedback on quality and ease of use outweighs the relatively few negative comments.

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 76 Showing 1,501-1,520 of 1,846 reviews

  • Great product

    |
    |
    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Power supply works as it should, haven't had any problems out of it since I installed it.

    I would recommend this to a friend

  • Powererr

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

    A lot power for my needs just that the cables are stupid thick Nd hard to manage

    I would recommend this to a friend

  • Corsair for the win!

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

    Powers everything i need and works well! Easy install and love it being modular

    I would recommend this to a friend

  • Great Corsair PSU

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

    Perfect for my build. Corsair is a great brand for power supplies

    I would recommend this to a friend

  • Love it

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

    that would be the best ATX ever. I have been using 2 for mining.

    I would recommend this to a friend

  • Great power supply

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

    Recently built a new desktop and this supply provided all the power I needed

    I would recommend this to a friend

  • Best power supply

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

    Perfect amount of wattage and for just over 100$ you won’t find a better deal for your money

    I would recommend this to a friend

  • Works perfect.

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

    I’ve had it for 7 months now. No complaints. Never had a problem.

    I would recommend this to a friend

  • PSU

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

    Good Material and perfect stuff to have in life. Thanks Best Buy!

    I would recommend this to a friend

  • No issues

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

    I haven’t had it for long but the power supply has worked well for my custom built computer.

    I would recommend this to a friend

  • give me power

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

    seems to be holding up nice for a new part, nothing to really say yet

    I would recommend this to a friend

  • Great PSU bad cables.

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

    Great PSU but the cables for the pcie are terrible. They do not have separate cables for the 8 pins but it has this jumper built into the cable for the gpu. It really makes the cabling look sloppy.

    No, I would not recommend this to a friend

  • power on demand

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

    easy install, exactly what I wanted. was in stock and ready to pick up same day.

    I would recommend this to a friend

  • Great Buy

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

    Works fine for most setups. I don't need 1000watts

    I would recommend this to a friend

  • Good PSU

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

    Good power supply and got it at a sale price. Needed it for a new build.

    I would recommend this to a friend

  • Works With No Problems So Far

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

    Haven’t had any problems so far and works like it should. Cables included are ok.

    I would recommend this to a friend

  • Great

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

    I got this just in case for my computer build with an rtx 3060 works great

    I would recommend this to a friend

  • Perfect PSU

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

    After a lot of research I turned to this PSU and i'm very happy with the choice.

    I would recommend this to a friend

  • Good mid tier psu

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

    Nice modular psu, runs x299 with 9800x and 1080ti on evga x299 micro, a D5 pump and 10 120mm fans and a host of argb a corsair comander pro and node pro. Cables are long and of good quality.

    No, I would not recommend this to a friend

  • Erik

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

    Works great and holds up well with all the specs I currently have in my PC

    I would recommend this to a friend
Page 76, Showing 1,501-1,520 of 1,846 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.