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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 1786 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

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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 78 Showing 1,541-1,560 of 1,786 reviews
  • Rated 5 out of 5 stars

    No issues

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

    Arrived on time, works as advertised, and no issues so far.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Product

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

    Good quality and not much of a hassle to install from my brothers view point

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

    Best

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

    Works great. I bought it for a new computer. Corsair is the best

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

    Power Supply God

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

    Works excellent in my computer. Helped boost the functionality of my entire PC.

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

    Great purchase.

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

    Just what my son wanted/needed. He is happy with it.

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

    A+++

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

    amazing and works great for mining, lots of pcie and no issues

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

    Great product

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

    Everything that was expect. Compatible with the other system parts.

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

    yes

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

    my power supply went out I was truly happy that best buy head one

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    good ps

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

    it is good one, but is not enough power for my pc and graphic card

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

    Best PSU One Can Buy

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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 go to power supply. If you need one. Go Corsair Gold.

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

    Excellent product

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

    Highly recommended. Great power supply. Exactly what I was looking for.

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

    Good psu

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

    No complaints, great price for power. And corsair, what more can i say ?

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

    Great, reliable PSU

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

    Used to power an overclocked 10700k and Strix 3080 OC. No problems.

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

    Worth the but

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

    Can’t go wrong with this product. It does the job.

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

    Good psu and it was on sale

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

    Good quality power supply for big Navi worked exactly as expected

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

    Solid power

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

    Plenty of juice for i9, 3070 ti, and plethora of peripherals.

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

    Corsair850x

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

    .....Have had no issues with this PSU, works great

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Doesn’t fully support 40 series

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

    The Psu is good but it no longer fully supports new gen gpus

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    It ok

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

    It's ok you'll get more options with an EVGA PSU..

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

    PlentyOfPower

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

    Product is highly recommended and should help my system awesome.

    No, I would not recommend this to a friend