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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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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 14 Showing 261-280 of 1,846 reviews
  • Pros mentioned:
    Noise level, Power

    Rated 5 out of 5 stars

    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.

    Super quiet and sting power supply!! Pic stays running 24/7 and no issues!!

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

    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.

    Quiet, doesnt seem to get too hot inside my PC. My last PSU failed, so it was time for me to update/replace.

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

    Amazing Power Supply

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

    Had it for going on 3 years now and it’s still working great!

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

    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.

    Very good psu. Modular so managing cables helps alot. Must need for certain 3080 cards with 3 8pins.

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

    Rated 5 out of 5 stars

    More than enough power

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

    Can’t go wrong with Corsair PSU. Powers my 5800X and EVGA 3080 and still has plenty of power!

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

    Rated 5 out of 5 stars

    Just 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.

    Awesome power supply. Silent and handles everything I've thrown at it plus more. Highly recommend

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

    Rated 5 out of 5 stars

    Quiet, easy to install, works great!

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

    Love the modular design of PSU's these days! This unit is very quiet and powers my case lights/fans/MoBo/and new GPU flawlessly!

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

    Rated 5 out of 5 stars

    Good quality, nice and quiet.

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

    Works great, very quiet, cables are a little annoying to work with but not enough that its a problem.

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

    Rated 5 out of 5 stars

    Powerful power supply

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

    Good power supply. Modular with plenty of cables included. 850watt had plenty of power for my needs.

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

    Rated 5 out of 5 stars

    An awesome 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.

    I live that this is modular and I only have to use the cables I need and it's packs a lot of power!

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

    Rated 5 out of 5 stars

    Silent Cooler

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

    Very nice power supply, the cooler only turns on when you are using your pc for rendering or gaming.

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

    Rated 5 out of 5 stars

    Great and reliable 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.

    Great power supply. Very reliable and more than enough for a high end pc build

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

    Rated 5 out of 5 stars

    Power!!

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

    This is a great power supply for those power hungry towers and at a pretty affordable price. Worked great out of the box and feeds my 3080ti just fine for the past month. Would definitely recommend if you plan to upgrade your build and requires a higher rated power supply. All and all, Corsair made a great brick of power and would definitely recommend….. P.S it may come in a giant box so look forward to that

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

    Rated 5 out of 5 stars

    Great power supply

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

    Fully modular, easy to install, excellent corsair warranty and quality. Paired with a fractal design 7 case.

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

    Good Power Supplies are Hard to Find

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

    I purchased this power supply as part of a new computer build. My initial desire was to purchase the RM650x but none of those were available anywhere on the market. I chose this power supply for its quiet operation and because it was available. So far, I have not been disappointed. My effort was to build a quiet to near silent pc and I believe I have accomplished that. Everything runs cool and quiet. Happy so far, but time will tell on reliability.

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

    Rated 5 out of 5 stars

    Excellent power supply, +10 year warranty

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

    Has what’s needed, stable power, fully modular, this enables easy routing of cables, quiet, steady power. Excellent power Supply

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

    Rated 5 out of 5 stars

    Decent power pack, recommended.

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

    Not recommended for modern computers, but is good for old ones due to the wattage being low. I recommend making all of your computers to last at least 5 years, since the price of a computer is going up. This means you'll need a gold rated power supply or better. Remember, if the power supply blows, it can take all the other parts with it. Doesn't happen often, but when it does, ouch.

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

    Rated 5 out of 5 stars

    Rm850x

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

    Very happy with my purchase my pc has plenty of juice with this and is pretty quiet.

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

    Rated 5 out of 5 stars

    Great addition to my PC

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

    Perfect for my PC gaming needs. The power supply works incredibly well and is super quiet.

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

    Power

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

    Pretty good! So far so good its been months & it works great

    I would recommend this to a friend