Outlet EventEnds Jan. 19. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
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:
Your price for this item is $72.49
Clearance
The comparable value price is $144.99

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 57 Showing 1,121-1,140 of 1,846 reviews
  • Pros mentioned:
    Noise level

    Good power supply and it is easy to cable manage.

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

    Its quiet, good looking, and its easy to cable manage.

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

    Just what I was looking for

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

    Great power supply, plenty of cables, and easy to install.

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

    Great power supply

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

    Awesome power supply. Have had zero issues and reccomend to anyone

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

    Perfect power supply

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

    Works great and the modular design helps keep cables orginzed.

    I would recommend this to a friend
  • Cons mentioned:
    Coil whine

    Alright, but loud coil whine

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

    Not a bad PSU, though returned in in exchange for a Seasonic Focux PX 850 as this had very loud coil whine during load and at sleep.

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

    Good

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

    Works as it should, does all the powering my computer needs

    I would recommend this to a friend

  • I live and die by this power supply!

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

    I highly recommend this power supply for mid-tier to high-end builds that intend to upgrade especially for those that will change out their graphics cards for an RTX 30 or RX 6000 or above. Corsair's customer service is very accomodating in an event that the power supply isn't performing correctly.

    This review is from CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - White

    I would recommend this to a friend

  • A great power supply for computers

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

    It is easy to install and a great power supply for PCs.

    I would recommend this to a friend

  • Great PSU, lots of POWAH!

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

    This is one of the best quality PSUs for this price bracket and comes with an amazing 10 Year Warranty. Very happy I got this to replace my aging previous 850W that was causing instability issues on my PC. 80+ Gold rating is great too but expected from Corsair on one of their most popular PSU's

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

    Lots of power!

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

    This power supply is perfect for a mid level to high level gaming rig.

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

    good value

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

    This is a great power supply for building your own computer.

    This review is from CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - White

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

    Does the job.

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

    Has all yhe connectors you.ll need. Great power supply from Corsair.

    I would recommend this to a friend

  • Corsair power supply in white

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

    Just finished building my pc a week ago. I bought this really early just in case that it would disappear as many pc components tend to do. This power supply has handled so far pretty well. I wanted to go with an all white build so this definitely helps with it bringing the cables in white.

    This review is from CORSAIR - RMx Series 850W ATX12V 2.4/EPS12V 2.92 80 Plus Gold Modular Power Supply - White

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

    Works

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

    Works great! No issues! Would by it again if i needed.

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

    Great Power supply

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

    It works great no problems it is great that is the cords come off

    I would recommend this to a friend

  • Reliable brand with a solid 10 year warranty!

    |
    |
    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This PSU is a highly recommended among other A-tier PSUs on LTT’s PSU tiers. I do feel like it’s a little more expensive compared to other A-tier PSUs and of course the prices aren’t the best right now due to stock shortage during COVID, but I paid for the extra assurance of buying from a reputable brand.

    I would recommend this to a friend

  • Great price

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

    Great price for wattage and super easy to install. Came with everything I need. However, I did have to jump start with paper clip.

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

    Great mid range modular

    |
    |
    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a great psu for the price. Excellent quality cables

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

    Does the job well

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

    Had no issues with it. Plenty of power. Good purchase.

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

    Good power

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

    It supports the beast of a rig that I have with no problem

    I would recommend this to a friend
Page 57, Showing 1,121-1,140 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.