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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 32 Showing 621-640 of 1,783 reviews
  • Pros mentioned:
    Modular

    Rated 5 out of 5 stars

    Fully modular is the best!

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

    Amazing power supply! Its fully modular so no more handful of cables jammed in the back

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

    Rated 5 out of 5 stars

    CORSAIR Power Supply

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This power supply is actually fantastic! It runs my GTX3070ti, AMD processor, and NZXT Cooling nicely.

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

    Rated 5 out of 5 stars

    Happy GrandParent

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

    As described with no problems. easy to install and connect

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

    Rated 5 out of 5 stars

    Great PSU for my first build

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

    Got this for my first build. Running a MAG Mortar B660M with and Inter i7 12th and a RTX 3060 running with no issue. Set up was easy and modularity was great.

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

    Corsair psu

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

    Great psu for its price. No complains with this psu since it does the job.

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

    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.

    Power supply works well, hasn’t failed me and gives just enough power to my 4070

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

    Rated 5 out of 5 stars

    Perfect modular psu

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

    Perfect for new builders to pros only use what you need. Fully modular will save you time during wiring and keeps things looking clean .

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

    Rated 5 out of 5 stars

    Great

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

    Great power supply, used it for a year now with my 3080ti and it’s still solid

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

    Rated 5 out of 5 stars

    Good for gaming

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

    Best one for cheap. If your not mining should be more than enough for gaming

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

    Rated 5 out of 5 stars

    PSU

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

    Quality and reliability for a good price. Easy to install

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

    Rated 5 out of 5 stars

    it does the work

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

    It does the work for my 4070 ti + i7-13700k gaming desktop !

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

    Rated 5 out of 5 stars

    Power House

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

    Had to replace my 600 watt PSU because i got a 3080 GPU this RM850X is a monster and has plenty of power I9-9900k 32Gbram 3 1TB NVME EVGA3080 OC RGB fans Liquid case Display

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

    Rated 5 out of 5 stars

    great

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

    you can ran the lastest high end hardware with this psu

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

    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.

    Its a power supply, Its fully modular. And there is enough kittens inside to power my 7900x and my 3070 Suprim. So I am happy with it.

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

    Rated 5 out of 5 stars

    This is …. POWWWAAAAA

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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 awesome. Just amazing . Super easy . The best

    I would recommend this to a friend
  • Cons mentioned:
    Size

    Rated 5 out of 5 stars

    High watt supply

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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.

    First time building a pc and this definitely caught me off when it came in big than expected package but it’s nice looking

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

    High Quality, Quiet and Powerful

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

    I have always used Corsair PSU's because I know they work. I upgraded from my CM750 to this one because I wanted to get a 3000 series RTX and I liked the idea of having a quieter computer. The second reason was for the better internals. I was concerned that the fan shutting down at low temps would raise the temps but if you exhaust your box correctly and have enough fans this shouldn't ever be an issue. I was also concerned about power surge with it kicking on and off. However, in my research that isn't an issue and there are a lot of safety features put in to prevent that in any case. Overall I am really happen with it!

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

    Rated 5 out of 5 stars

    Exceeded my expectations

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

    It really helped boost my heavy duty pc and im sure its not gonna break anytime soon

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

    Rated 5 out of 5 stars

    Quick and easy replacement

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

    7 year old setup power supply broke, so I need a replacement and so far no complaints. Quick and easy replacement.

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

    Rated 5 out of 5 stars

    Power supply

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

    This is definitely something that will power a much needed graphics card. It stays cool and never shuts off. If you need power this will definitely add it to your custom build computer.

    I would recommend this to a friend