Winter SaleEnds 1/19. 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 70 Showing 1,381-1,400 of 1,846 reviews

  • Easy setup

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

    Easy setup and is able to overclock my system with ease and I have a ryzen 7 3700x with a rx5700 xt and 48gb of ram runs great

    I would recommend this to a friend

  • Overkill for my taste

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

    Over kill for my taste. I just built a PC and this is in it. Not a gamer. If I ever upgrade this should handle it.

    I would recommend this to a friend

  • Works perfectly

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

    I have had no problems with it so far. Currently using it with my i7 9700k with plans to use it for the rtx 3080.

    I would recommend this to a friend

  • Great Item

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

    Was purchased for my Grandson. He gave a rave review. No problem is installation. Very happy with this purchase.

    I would recommend this to a friend

  • Good value and runs quiet!

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

    Was happy to have everything in stock, needed a rock solid power supply for a new build and this works!

    I would recommend this to a friend

  • Quiet and Works

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

    My PC hasn't exploded. It works beautifully and has not made any noises so far.

    I would recommend this to a friend

  • Excellent Power Supply

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

    Really good power supply so far no problems and its really quiet and the fact that it has a 10 year warranty is perfect

    I would recommend this to a friend

  • A Little Too Big

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

    I haven't been able to really use it, but it didn't fry everything the first time I turned it on so that's good. This thing is HUGE though, so keep that in mind, I recommend a full size tower case with this, as the cables are a bit longer than anticipated.

    I would recommend this to a friend

  • PSU

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

    very good Power Supply for the price, its really solid and well build.

    I would recommend this to a friend

  • Get this

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

    Absolutely great in every way. Every necessary cable needed is included plus overkill power output.

    I would recommend this to a friend

  • What an awesome product.

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

    The core is really nice with a nice pouch that holds your wires. It's very fancy and worth that price.

    I would recommend this to a friend

  • overkill

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

    i bought it ended up selling it to my friend cuz he needed it more than i do

    I would recommend this to a friend

  • Easy to use

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

    Runs everything I need it to for a good price. Awesome how cables can be chosen for use

    I would recommend this to a friend

  • Fully modular.

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

    Upgraded from 650w. Can finally use the additional 4 pin mobo power connector on my x570 tuf gaming WiFi

    I would recommend this to a friend

  • Solid

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

    Purchased this for my new PC build. So far so good, snug fit in my micro atx case but still room for cables.

    I would recommend this to a friend

  • Stable

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

    Good price. So far no problems. I run my pc nearly 24/7: 100% load on my dual gpu 1080ti and 1070.

    I would recommend this to a friend

  • Gets the job done

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

    Fantastic psu didn’t blow up when I powered on pc. Currently running a 5900x with a 6900xt with ease

    I would recommend this to a friend

  • Corsair Rzm850X

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

    Installed my RM850X in my Be Quiet Dark Base 700 case; it is absolutely quiet! No noise! A quiet beast!

    I would recommend this to a friend

  • A+++

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

    Purchased for sons computer good pricing and very fast delivery.

    I would recommend this to a friend

  • Good psu

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

    It’s a bit stinky (smells like cooking plastic) after you unbox it and put it in your PC but once you wear it in it’s a pretty nice psu. Cables weren’t overly stiff like some other reviews mention. No explosions or failures yet either.

    I would recommend this to a friend
Page 70, Showing 1,381-1,400 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.