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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 47 Showing 921-940 of 1,846 reviews
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    great

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

    great power supply for the money. just built a new computer for my home

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

    Great corsair power supply for gaming pc. 850w is good enough for most pc build

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

    Rated 5 out of 5 stars

    Quality 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.

    It gets the job done. Very good, reliable power supply for the money.

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

    Rated 5 out of 5 stars

    Great form factor 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.

    Modular power supply makes cable management a breeze and PSU works well so far.

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

    Quality

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

    90% of computer hardware failures are caused by a power issue. The last place you want to skimp is with your PSU. All cables are modular and they give you plenty of them. I can't tell how loud this is however as I have 4 radiator and 4 case fans with 2 mechanical hard drives. I do wish it had a test button for the fan as this PSU will shut the fan off if it's not needed.

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

    Solid power supply for my build, would recommend this.

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

    Rated 5 out of 5 stars

    Good for price to performance

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

    Very reliable brand. Working as intended. Runs my 5900x and 3080 very well.

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

    Rated 5 out of 5 stars

    Corsair is the GOAT

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

    Don’t cheap out on PSU. This one is awesome and is known for its reliability!

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

    Rated 5 out of 5 stars

    Corsair realiable

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

    Second corsair power supply I've purchased and no problems at all.

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

    Top quality psu for 3080

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

    Quiet and efficient. Great build for my gaming system

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

    Great PS

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

    Works perfectly. Very quiet. Great for gaming pc builds.

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

    Rated 5 out of 5 stars

    good psu!

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

    works amazing. easy to set up, and it is very silent even while gaming!

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

    Power supply works like description. Wish it came with longer power cable for motherboard.

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

    Rated 5 out of 5 stars

    Super great!

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

    Really nice packaging comes in felt bag! Really convenient modular design makes for an awesome install.

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

    Rated 5 out of 5 stars

    100%

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

    Doing the trick no issues. Nice and quiet, even when the fan starts up.

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

    Rated 5 out of 5 stars

    Best PSU

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

    So far so good! One of the best PSU and gives decent amount of power

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

    Rated 5 out of 5 stars

    Great 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.

    Price was fair. Fully modular so no cable tangles, just plug in what you need. Corsair quality.

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

    Always Good to Have It and Not Need It

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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. 850W is more than enough to accommodate any PC build (unless you need to Go Big or Go Home every time). I haven't had to run this thing hard, but I'm sure this can handle anything you throw at it without issues. Also it's great that it's fully modular so you can use the necessary cables... helps keep the cable management "clean". This is a good middle ground between a 750W and 1000W variations.

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

    Rated 5 out of 5 stars

    RM850x

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

    Corsair RM850X has great clean power to feed my 3080.

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

    Rated 5 out of 5 stars

    Build your own computer

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

    Easy to install instructions with minimum time spent. Excellent quality

    I would recommend this to a friend