Outlet EventEnds Jan. 19. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

Your price for this item is $72.49
Clearance
The comparable value price is $144.99

Customer reviews

Rating 4.8 out of 5 stars with 1846 reviews

Rating Filter

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

Pros mentioned filter

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 41 Showing 801-820 of 1,846 reviews
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Great

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

    Great PSU, high quality and high wattage. Ideal for giving headroom to power hungry components

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

    Rated 5 out of 5 stars

    Great

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

    Really good Paris by grade the power your whole PC any GQ and a seal any liquid cooler

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

    quiet and good

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

    does it's job and probably won't blow up. quieter underload than my evga 850 g3 supernova.

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

    Rated 5 out of 5 stars

    best bang for your buck

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

    best power supply company in my opinion great for any new computer set up and future ones as well

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

    Rated 5 out of 5 stars

    Best Power supply brand

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

    Packaged well, instructions easy to follow For small to medium build this thing will take care of it

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

    Rated 4 out of 5 stars

    High quality power supply

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

    Solid power supply. Runs very quiet. Everything feels high quality. Only complaint is that the wires could be a little longer. Though that's a common issue for most power supplies in my experience. Otherwise I'm happy.

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

    Rated 5 out of 5 stars

    Great

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

    Works great for what I needed. Love how you don’t have to use all the cables unless you want to.

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

    Amazing

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

    Its perfect and very affordable for what it is. I love this PSU and its very easy to use. 10/10

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

    Rated 5 out of 5 stars

    Top Tier PSU

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

    If you're looking for a reliable and clean PSU (say for your new GPU build) look no further.

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

    Has consistently performed well for me.

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

    I have several of these and they have performed perfectly. Always have the proper voltage on the all important 12v rail rock solid. To me anything under 12 volts is unacceptable like I have found with other cheaper power supplies and best buy has been consistently the well... The best buy! I am pretty critical of computer hardware but will not hesitate to buy another premium high wattage corsair power supply.

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

    Rated 5 out of 5 stars

    This will future-proof your power supply

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

    Great power supply. Bought this for the RTX 3080 and to future-proof my computer a bit more

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

    Rated 5 out of 5 stars

    Quality at a fair price.

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

    High quality gold rated power supply. Price point was same as internet pricing (with no shipping cost).

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

    Good for starters

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

    Very quiet, doesn’t wake up my roommate and very nice wattage level no complaints here.

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

    Rated 5 out of 5 stars

    works

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

    Turned on and stays running so far so good wires lil stiff but cheaper to make that way .

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

    Rated 5 out of 5 stars

    modular power supply is so nice

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

    A modular power supply is so nice for keeping the build clean and tidy. I enjoyed the build with this one.

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

    Rated 5 out of 5 stars

    Solid

    |
    |
    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Quiet and efficient. Does what I need it to do and runs great on my gaming pc

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

    Rated 5 out of 5 stars

    Corsair RMx 850W

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

    Power supply has been performing perfectly fine, powering my Ryzen 7 5800x and RTX 3090.

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

    Rated 5 out of 5 stars

    Good PSU

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

    Really good power supply for the price. Hight quality and not expensive.

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

    Rated 5 out of 5 stars

    Works fine

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

    This hold my newly build rig jut fine. Would recommend this powe supply to anyone building.

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

    Works great!

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

    Really easy upgrade for my PC for the new 3080 I got. Seems to be working really well!

    I would recommend this to a friend