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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

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 44 Showing 861-880 of 1,846 reviews
  • Pros mentioned:
    Quality

    Rated 4 out of 5 stars

    Not the new model

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

    I got this onsale @ the store and needed a psu my 1200w went bad from EVGA. So this helped out I like Corsair but even onsale this was a high cost and not being the newer model was kinda wierd however it is corsair so there good units.

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

    Rated 5 out of 5 stars

    Modular

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

    I love this modular power supply. This was a better deal at the time than any other power supply.

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

    Rated 5 out of 5 stars

    quality

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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.

    this power supply is top in its market this year highly recommend if you have dirty power.

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

    Rated 5 out of 5 stars

    Building

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

    Great product for anyone building their computer from scratch.

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

    Rated 5 out of 5 stars

    Great value

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

    I have no complaints, comes with tons of cables and is a very highly rated psu. Shouldn’t have any problems

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

    Great power supply

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

    Easy to install works great, have my system over clocked and keeps the power running

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

    Rated 5 out of 5 stars

    Good PSU

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

    Great PSU lots of power for todays systems. Probably more than I need but that's ok.

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

    Rated 5 out of 5 stars

    Corsair RM 850x

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

    Really love this power supply in love with how quiet it is and how much more performance I get from using it.

    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.

    Great power supply for my 5900x and 3080FE. Have no issues over locking either!

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

    SOLID Product!

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

    cant go wrong with corsair. I exp other brands for PSU and some did not work as expected. but not for corsair. Corsair really do amazing product either from pc parts , or to pc accesories such as keyboards, mouse, etc. so far I have this PSU for almost 5yrs, and this 2nd one for almost year and both of my system builds have no problem as expected and running strong.

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

    Rated 5 out of 5 stars

    works like it should

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

    fully modular - used it for an amd setup as any sane person would right now. works perfect.

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

    Rated 5 out of 5 stars

    Corsair gold

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

    a power source with great power. you can put a lot of hardware my no problem

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

    Rated 5 out of 5 stars

    Good power supply more than enough

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

    Very nice power supply it handles all my parts a little overkill for my parts tho

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

    More than I needed, but worth it.

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

    Excellent. This is a fully modular power supply and is more than enough for what my PC needs are. While I don't really need 850 watts and it's probably overkill, it brings peace of mind. Furthermore, it has the potential for powering more power-hungry components in the future. It comes decently packaged and the modularity means that you don't have a mess of cables to deal with.

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

    Rated 5 out of 5 stars

    CORSAIR - RMx Series 850W

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

    Easy for install. The psu is so quiet. You have an excelent item for the price.

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

    Rated 5 out of 5 stars

    Ol'Reliable

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

    Bought this 1 year ago and it is still working to this day.

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

    Rated 5 out of 5 stars

    High quality unit, easy to install in Alienware R7

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

    Used this as an upgrade for the PSU in my Alienware R7. Works perfectly.

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

    Rated 5 out of 5 stars

    Corsair for the win

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

    Great power supply from Corsair exactly what you expect from them. It’s perfect

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

    Rated 5 out of 5 stars

    Good power supplie

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

    Good product no issues its all you need for enough pc power

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

    Rated 5 out of 5 stars

    Best price, best PSU! CORSAIR FTW!

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

    Plenty of power and you cant go wrong with corsair, it handles my high end PC with no issues at all....

    I would recommend this to a friend