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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 70 Showing 1,381-1,400 of 1,786 reviews
  • Rated 5 out of 5 stars

    Exactly what you need

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

    Exactly what i needed. Great price and easy purchase

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

    Worth it!

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

    No problems once so ever I use a AMD Ryzen 7 5800x with a RTX 3090 if your overclocking then get 1000 or more

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

    5 Star

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

    One of the best power supplies on the market, very good

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

    Great 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.

    Great little Power supply! Used it to power a custom home made Juke Box!

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

    Nice

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

    Bought this power supply since I was uprading to a new graphics card. So far no problems

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

    Great Value

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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 for the money. I love the modular design so that there are no wires that are not needed

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

    Works

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

    Provides power to my pc which is what I wanted it to do

    I would recommend this to a friend
  • 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 normally. The one I got just happened to be dead

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

    Tech

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

    Supply’s everting i needed to no problems at all excellent product

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

    Great PSU

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

    No issues, pretty compact, fit much better in my Micro ATX case than my previous PSU. Very quiet (usually silent).

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

    Works great stays quit while gaming. Thick cables

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

    I got a micro atx case and running a 3080. Was super easy to put together but the wires are deff really thick. I was still able to shut the case but if you squint you can see the panel bow a bit lol.

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

    Amazing

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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 had for two years before replacing, no power issues ever.

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

    Seems to be working good.

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

    Seems to working good. Geek squad built me a computer. When I asked for the extra parts they said they were thrown away. :(

    I would recommend this to a friend
  • Best Buy Employee

    Rated 5 out of 5 stars

    Quality

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

    Good high-quality power supply, you can always trust corsair.

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

    Does what it's supposed to.

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

    So far so good. Easy to install, does what I need it to.

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

    Not great for a clean look

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

    The in-cable capacitors made it impossible to route cables properly in my case. I would probably not have bought this had I known this head of time. You will need to buy cable extensions if you have any hope of a clean looking build. So add $50 to your budget.

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

    Great Upgrade

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

    It's a great upgrade from, the SeaSonic 750 I was using prior. A great value for it's price.

    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.

    Great quality for the price. I really love the modular design of this PSU. Makes for easy cable management.

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

    Great product

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

    High quality power supply fixed all my conputer issues.

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

    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.

    Reliable PSU. Slotted right into my nzxt h7 flow no problem

    I would recommend this to a friend