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Customer Ratings & Reviews

Your price for this item is $149.99

Customer reviews

Rating 4.8 out of 5 stars with 1786 reviews

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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

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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 65 Showing 1,281-1,300 of 1,786 reviews
  • Rated 5 out of 5 stars

    Works great!!

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

    Great product, works as advertised. Will definitely buy again.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    It works.

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

    A quick fix to a broken power supply. Even with the need for a mounting bracket

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Good product

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

    Completely fixed my problem when my computer kept shutting down!

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Future proof power supply

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

    Was the perfect fix for my 3070 graphic card which helped the chronic monitor reset

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great PSU!

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

    This power supply works great! I’ve had no issues at all.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Quality

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

    Quality power supply used on my 3080 and 6950xt Very Stable no noise and has warranty.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Power Supply

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

    Corsair makes some of the best computer components on the market.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    good

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

    that really good but i neee more power now honestly need more power , but this one pretty good

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Top of the line PSU

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

    Corsair makes the best PSU! I would definitely buy one again.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    works

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

    it works great man ion know what to say it just works fine

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Amazing PSU

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

    Definitely a good product. First time using it and I love it

    I would recommend this to a friend
  • Best Buy Employee

    Rated 5 out of 5 stars

    Life saver

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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.

    Brought my computer components back to life, old PSU wasnt giving enough power

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    New PC build

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

    Works beautifully, comes with more than enough cables AND it's quiet.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Works fine

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

    Needed to upgrade really old psu. Swapped out with old one in a couple minutes. No issues. Runs quiet and have had no odd occurrences.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Works well with 7900XT

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

    I installed in my 5900x system with 7900XT. Works great.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good deal, good power supply.

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

    This is a pretty good power supply. However, my new system was having issues I suspected may be the power supply not being powerful enough, so I exchanged this for a 1000W. That didn't solve the issue.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Good

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

    It was able to support all my thinfs in my pc i do not reget buyjng this

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Works like a charm

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

    It makes things turn on and has plenty of ports to power everything and them some.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great psu

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great power supply no issues it stays quiet don’t even hear it

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Trusted Brand

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

    With all the issues of certain brands, Corsair is a trustworthy brand. Picked this up for a new build and it is worth it.

    I would recommend this to a friend