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Customer Ratings & Reviews

Your price for this item is $72.49
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The comparable value price is $144.99

Customer reviews

Rating 4.8 out of 5 stars with 1846 reviews

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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

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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 37 Showing 721-740 of 1,846 reviews
  • Pros mentioned:
    Modular

    Rated 5 out of 5 stars

    works like a charm

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

    Really solid power supply, works with my cables i got from cable mod too. I cant wait to try this out with the 3080

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

    Rated 5 out of 5 stars

    Need tons of power? Buy it.

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

    850 Watts is probably a bit of overkill, but buying this PSU will cover just about any power supply demand you'd need.

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

    Quality

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

    Great build quality and easy to setup. Has been running like a charm. Modular cables makes for a clean build.

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

    Rated 5 out of 5 stars

    Great PSU!

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

    Got this after I finally reached the limit of my Seasonic 520W. No issues AND it actually had a couple more cords than my Seasonic. That's a win.

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

    Rated 5 out of 5 stars

    Does its job well

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

    It does its job well, and since it's a modular power supply has all the cables (and more) that one might need.

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

    Rated 5 out of 5 stars

    Excellent power supply!

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

    This is an excellent power supply that was locally available at my Best Buy store. It was easy to install and worked as expected.

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

    Rated 4 out of 5 stars

    corsair quality

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

    known for their quality psu and capacitors they use. 1 star off because the cords have large bumps which I believe are resistors or something which hinder cable management and difficult when installing. bought premium corsair cords

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

    Rated 5 out of 5 stars

    Excellent PS!

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

    Used with Assus Crosshair Hero VIII and AMD 3900X. Competitive price and in stock at Best Buy.More than enough cables for my needs.

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

    Rated 5 out of 5 stars

    So far so good

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

    I got this for my new build. I didn't need all this power. But I wanted all this power. So far it's working out great.

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

    Rated 5 out of 5 stars

    Great Power Supply!!

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

    Does the job as intended. The modular feature makes it easy for cable managements. Power supply runs quiet. No complaints.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Rated 5 out of 5 stars

    quiet and work as expected

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

    Silence power supply at decent price, meaning still quite expensive comparable to other PSU but worth it if it last at least several years.

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

    Rated 5 out of 5 stars

    Great buy

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

    The best in the game. Using it on a gaming rig Powered by a RTX 3090. I would recommend this to anyone

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

    Rated 5 out of 5 stars

    Solid

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

    Solid power supply. Always a good Rec for Corsair. Sold out of the 1000i but only needed 700 so this works

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

    Rated 5 out of 5 stars

    Reliable PSU

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

    I have always been an EVGA guy, but I think that this PSU switched me over to using Corsair more. Very reliable unit.

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

    Rated 5 out of 5 stars

    One of the best

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

    Needed more power for my sons gaming computer. This fit the bill perfectly. Corsair has never let me down.

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

    Evga is the way to go

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

    Make sure you know your components this was more than enough for my pc easy to use and always for fully modular

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

    Rated 5 out of 5 stars

    Just Right

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

    Solid and powerful. This gets lots of great reviews. I put it in my first build and I’m very happy with it

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

    Rated 5 out of 5 stars

    Quality PSU

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

    Corsair has quality PSU's. Writing this review to get my free 25 points offered from BestBuy.

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

    Rated 5 out of 5 stars

    Great power supply

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

    It has enough power to and the build quality is definitely top notch. I would definitely use this in my build again.

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

    Rated 5 out of 5 stars

    Great upgrade

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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.

    A great upgrade for my wife’s PC! Her old 760w couldn’t handle a EVGA 3080 FTW3, this handles it like a champ!

    I would recommend this to a friend