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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 38 Showing 741-760 of 1,846 reviews
  • Pros mentioned:
    Quality

    Rated 5 out of 5 stars

    Top tier 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.

    Corsair makes excellent power supplies! Highly recommended.

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

    Rated 5 out of 5 stars

    I Feel The Power

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

    It’s works perfectly as intended with my 2080 TI! I had all the extra cables I needed and the power is well above what is required.

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

    Rated 5 out of 5 stars

    It works flawless

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

    Very quiet and a upgrade from my old 650w. I upgraded my CPU and my GPU, the extra power really makes it difference.

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

    Rated 5 out of 5 stars

    Perfect for GTX 3000 series

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

    Purchased in anticipation of upgrade to rtx 30 series. Fan is quiet. Power is stable with no fluctuations.

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

    Psu

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

    Excellent power supply for any build. Love the modularity. Quality cables. Smooth. Quiet. Efficient.

    I would recommend this to a friend
  • Cons mentioned:
    Coil whine

    Rated 5 out of 5 stars

    excellent

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

    Returned my old PSU due to coil whine. Got this (although diff brand than the previous) and have no issues.

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

    Rated 5 out of 5 stars

    rock solid so far

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

    Powers my PC without issue. It's modular which is nice but like most power supplies the cables aren't visibly appealing.

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

    Rated 4 out of 5 stars

    Amazing value for the money, but..

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

    I love this power supply, I have always used corsairs and this is my first modular, it's amazing quality. The cables that come with it seem very cheap- if you are building a custom system and have an exposed side, I suggest getting the corsair braided cables, or a set from cablemod.

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

    Rated 5 out of 5 stars

    reliable product

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    good product, low noise. I would definitely buy more when the price is pretty good again.

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

    Rated 5 out of 5 stars

    Works 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's a power supply. Does what it should. Fully modular so has customization with being able to limit cords.

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

    Rated 5 out of 5 stars

    More than enough power

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

    Wonderful power supply unit. Finally upgraded to something modular and helped make my build so much cleaner.

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

    Rated 5 out of 5 stars

    Once again Corsair has done it!

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

    Such an awesome product from Corsair! I had the rm650x and it was great so for my new build I got this one!

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

    Rated 5 out of 5 stars

    A breeze to work with

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

    Smaller dimensions than the 750 it replaced, works well in a cube case, all cables routed easily and it seems really quiet even under load

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

    Rated 5 out of 5 stars

    Very Efficient psu I Recommend

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

    In my experience this is the best option for those ho want to build a great gaming Pc whit quality components

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

    Rated 5 out of 5 stars

    3080 Ready

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

    Best PSU I've ever owned. Quiet and 10 year warranty from a trusted(US based) brand. What's not to love.

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

    Rated 5 out of 5 stars

    Great Power!

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

    Works great and nothing problem about power for my PC with 3080 and AMD 5800x

    No, I would not recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Best psu i’ve ever had for the buck.

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

    Don’t be hesitant to buy this like I was, it’s perfect with my 3080 and rog strix 570. Best i’ve ever had

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

    Quiet

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

    Haven’t had any issues with the computer now getting enough power with this in. Very quiet too!

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

    Rated 5 out of 5 stars

    extra power

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

    Provided more then enough power for my new Nvidia card 3070, installation was complex but successful

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

    Rated 5 out of 5 stars

    Really good 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.

    Love this power supply Corsair is always my go to and it’s enough power for my computer.

    I would recommend this to a friend