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Customer Ratings & Reviews

Your price for this item is $149.99

Customer reviews

Rating 4.8 out of 5 stars with 1783 reviews

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Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

96%would recommend to a friend

Customers are saying

Customers frequently mention the RMx Series RM850x's excellent performance and quiet operation as major strengths. Its fully modular design and ease of installation are also frequently praised, simplifying cable management and the overall building process. While some users noted its larger size, the positive feedback overwhelmingly focuses on its reliability and value. The power supply is considered a great option for its price point.

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 36 Showing 701-720 of 1,783 reviews
  • Pros mentioned:
    Power supply

    Rated 5 out of 5 stars

    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 power supply had no issues with it at all would recommend.!

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

    Better product

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

    I had originally bought the other version of this product (didn’t really know why there’s two) and long story short the other one shorted out because of WRONG END CABLES that it came with and fried my display port. Luckily I had a power surge or else it probably would have destroyed my PC. I exchanged it for this and I’m glad it came with correct cables, like it should right? Moral of the story, check the cables cause apparently they make them wrong and can possible ruin your PC.

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

    Rated 5 out of 5 stars

    Editing and Gaming

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

    Keeps my PC running at full speed ahead. Great for editing and gaming.

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

    running great

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

    Powers my 3080 like I needed, good brand. Cable management is simple

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

    Rated 5 out of 5 stars

    Plenty of 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.

    More than enough power for my new PC build and I trust Corsair quality.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Love it

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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.

    Works great plug and play easy to install. No issues

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

    gets the job done

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

    reasonably priced, good wattage power supply if you're running a high end GPU. more power than most people will need but for my needs it's perfect

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

    Rated 5 out of 5 stars

    Great price and battery

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

    Got this battery on sale recently and it has worked well in my computer build.

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

    Rated 5 out of 5 stars

    Amazing!!

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

    I have loved this PSU and it is so quiet!! Would definitrly buy again and again!

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

    Rated 5 out of 5 stars

    Fixed my coil whine

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

    Had couil whine on an AMD 7900xt with an EVGA 750w. Installed this PSU and coil whine is completely gone.

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

    Rated 5 out of 5 stars

    Very Quiet

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

    Easy to install, So quiet I cant tell if it turns on, and so far no issues

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Easy install

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

    Nice and easy install! Only recommend getting cable extensions though, as these provided are a little stiff and bulky. Other than that no issues with this quite psu!

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

    Rated 5 out of 5 stars

    Quality power unit

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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 my second Corsair power unit purchased from Best Buy. Corsair products are as usually very dependent and flawless. Quality product.

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

    Rated 5 out of 5 stars

    Great PSU

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

    Great PSU. It works as expected and has been just an over all good purchase for my computer. (6 months in)

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

    Rated 5 out of 5 stars

    Power horse works great

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

    needed a power supply for my wife's PC upgrade, decided to go to this from a 650w PS. rather be safe than sorry. works great no issues and quiet

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

    Best Power Supply for a budget pc

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

    A great power supply for a great price. Ive had no issue out of it and its been 6 months.

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

    Rated 5 out of 5 stars

    Powersupply

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

    Works amazingly is quite and didn’t have any issues is a bit overkill for my current setup but eventually i plan on upgrading so i know it will be able to handle

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Highly Recommend

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

    Works great, super easy to install and i definitely recommend

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

    Rated 5 out of 5 stars

    Great value for higher end builds

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

    very good power supply, works well with my 7900xtx and 7900x

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

    Psu

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

    Great lil PSU, it does what its supposed to do. Price was decent, so i cant complain.

    I would recommend this to a friend