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 72 Showing 1,421-1,440 of 1,846 reviews

  • Very cool

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

    I accidentally mixed up my power supply review for my motherboard review LOL. But both are very cool.

    I would recommend this to a friend

  • Great purchase

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

    This the second one we purchased for another computer built. One of the best and best price.

    I would recommend this to a friend

  • Great value

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

    A much needed upgrade for my soon to be new GPU. Does the job great and have had no issues.

    I would recommend this to a friend

  • Solid

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

    Was getting spikes with my old no name PSU. Bought this and my power problems have been solved.

    I would recommend this to a friend

  • Plenty of Power, Not Enough Modular Cables

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

    Plenty of power for my needs my only issue is not enough modular PCIe Cables and wish they made then single vs pigtailed as this adds a not to pleasant look and to fix this many 3rd party cables are in the $30 range...

    I would recommend this to a friend

  • Solid PSU

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

    Corsair Power supplies are a solid value. I have several in many of my computers.

    I would recommend this to a friend

  • The best

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

    Love how quiet it is and efficient. Got it as I saw it had great reviews and I am more than satisfied.

    I would recommend this to a friend

  • Would Recommend

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

    Top Tier Power Supply By Corsair. Cables are relatively stiff but great quality overall.

    I would recommend this to a friend

  • Quiet psu

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

    I can’t believe how quiet this psu is. Even with graphics intensive games the fan rarely turns on.

    I would recommend this to a friend

  • Power

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

    Love it so far, got it on deal of the day and items been great

    I would recommend this to a friend

  • Iener

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

    Bought for our office , had one just like it that lasted five years, I’m sure this one will too

    I would recommend this to a friend

  • Best buy made me do this for free money

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

    it works well for a 3080 and Ryzen 7 with 6 fans as an 850 watt it has good value

    I would recommend this to a friend

  • Great purchase

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

    My son’s power supply for 10 years finally went out. Read reviews for Corsair. Great purchase.

    I would recommend this to a friend

  • Power supply

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

    Works as it should. No issues so far and have purchased the same brand in the past

    I would recommend this to a friend

  • 5 Star

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

    I researched power supplies and this is the one I decided on. It was the right decision, works great.

    I would recommend this to a friend

  • Great Psu

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

    Great psu so quiet you don't even know it's on. Would purchase another for a future build.

    I would recommend this to a friend

  • Excellent Gamers Psu

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

    Excellent for mid- advanced gaming pc's. The modular cables make it so easy for a great cable management.

    I would recommend this to a friend

  • Corsair 850W PSU

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

    Great power supply. No issues. Easy install. Will see if any issues arise down the road.

    I would recommend this to a friend

  • Computer now Screams !

    |
    |
    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Such an improvement for my video card... WOW! Computer never worked so good.

    I would recommend this to a friend

  • Good value

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

    Good number of cables, good length to the 8-pin cpu cable, can dress cable behind the m/b.

    I would recommend this to a friend
Page 72, Showing 1,421-1,440 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.