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Customer Ratings & Reviews

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

Customer reviews

Rating 4.8 out of 5 stars with 1846 reviews

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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 19 Showing 361-380 of 1,846 reviews
  • Pros mentioned:
    Power, Quality

    Rated 5 out of 5 stars

    powerful supply

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

    This is a powerful power supply, corsair is the best. Great quality.

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

    Rated 5 out of 5 stars

    Best buy has computer parts in stock!

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

    Great power supply and quite. Has zero rpm mode and is modular

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

    Rated 5 out of 5 stars

    Fantastic

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

    Fantastic psu for the price, nice and quiet and never gets hot even under load.

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

    Rated 5 out of 5 stars

    Good

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

    Very silent. Easy to connect. Cables look fancy too.

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

    Rated 5 out of 5 stars

    Top notch

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

    Amazing quality very professional packaging works silent and great

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

    Rated 5 out of 5 stars

    Great buy for Full Modular

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is super quiet and very reliable. I've had zero issues since purchase.

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

    Rated 5 out of 5 stars

    Awesome and efficient

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

    Great power supply for a 3080. Also runs super quiet

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

    Rated 5 out of 5 stars

    Excellent PSU

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

    Got this PSU from recommendations from my friends and some research online and what did I get? Exactly what was expected: great performance and a solid PSU for future proofing your build. I don't need to use all the the watts provided however it works great for my first build and allows me to future proof any upgrades to my machine.

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

    Rated 5 out of 5 stars

    Decently Good Power Supply

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

    Decently Good Power Supply A good reliable and affordable power supply is needed when putting together a basic gaming machine. The price point was where I was looking at and this would fit the bill on a computer build that is coming together slowly. It's definitely a keeper for know on what is being build.

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

    Rated 5 out of 5 stars

    Powerful and quiet

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

    Plenty of power for future hardware upgrades along with being cool and quiet.

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

    Rated 5 out of 5 stars

    Plenty of power for modern systems.

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

    When I got my new 3000 series video card I thought my old 750w Power Supply would handle it fine. Well my system crashed when stressed. I picked up this Corsair 850w Power Supply and it has handled all of my new hardware great! Have been running for awhile now and no problems at all. Highly recommended.

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

    Easy Peasy

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

    My old PSU crapped out on my wife while i was away from home for work. I ordered this PSU and my wife was able to install it on her own relatively easy and she isn't a PC tech or has ever messed with hardware much. Directions were straight forward and easy to follow. 5 stars for being so easy to install :)

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

    Rated 5 out of 5 stars

    Corsair always makes a good Product !

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

    My old Corsair power supply lasted easy 12 years 100% up time on a computer always on. I did clean it out often but probably not as much as I should have . I Like corsair products I always buy them and they always last. I never get any weird problems you get with cheap Power supplies like inconsistent voltage or dead leads ..

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

    Rated 5 out of 5 stars

    best of the best

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

    loce this power supply,easy to install and very quiet

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

    Great PSU

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

    Quiet. Efficient - fan only runs when wattage is needed. Basically one of those things that you hook up, plug in, forget it's there - just like a good PSU should be. Shopped all 850W 80+ Gold PSUs and this was one of the quietest, best reviewed, and best valued for the money. And, best price was at Best Buy so didn't need to order online or price match!

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

    Rated 5 out of 5 stars

    Has worked well.

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

    Packaged well, supplied with plenty of cables. good quality.

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

    Rated 5 out of 5 stars

    Exelent 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.

    Installation is very easy and the modular design helps limit unused wires and connections in the case. Connecting the needed wires is very easy making installation painless. The temperature controlled fan helps to limit noise while still providing necessary cooling as needed when things get hot. Plan to use another one of these on my office computer.

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

    Rated 4 out of 5 stars

    Works well, good waranty

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

    Corsair is a good brand, it is a quality power supply that has been reliable. It is not a flashy one but it does the job you need and at 850 it is enough for most systems.

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

    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.

    Love the full modular Design ease of use and quiet operation

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

    Rated 5 out of 5 stars

    Great PSU

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

    Excellent PSU, quiet, and powerful. Shipped fast!!

    I would recommend this to a friend