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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

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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 63 Showing 1,241-1,260 of 1,846 reviews
  • Rated 5 out of 5 stars

    Power Supply Replacement

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

    Works great. Had a problem trying to get a certain connection on my MOBO. Found it was a dual use connector. I had to separate the connector a d identify the correct orientation.

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

    Easy install, works without issues

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

    Product was very well packaged. Price for wattage was good as well. Purchased before release of 30xx GPUs, so didn't expect to have 12-pin. PSU could easily handle the added load if needed.

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

    Solid product

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

    Had the bronze plated model and it went out withib 3 months of purchase so I upgraded to the gold. I have had zero issues and i am very satisfied with this product

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

    Great performance and value!

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

    All the performance and value you could ask for at this price. I've been using Corsair power supplies since 2011 and haven't had an issue with any of my units.

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

    Rated 4 out of 5 stars

    RM850X

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

    Fairly quite, working great so far. Plenty of cables included.

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

    Retail Roundup

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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 box of power that converts your cash in to modern day entertainment. The quality is there and when that fails you can rely of their class leading warranty. Buy it!!

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

    Rated 4 out of 5 stars

    PC Power

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

    A little more power than I needed so plenty left over for upgrades

    I would recommend this to a friend
  • Rated 4 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.

    Very easy to use and hook up. Came with all the necessary equipment.

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

    Rated 4 out of 5 stars

    Power

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

    Corsair is a great and reputable company the power supply is as it should be

    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.

    I used to build computers over 20 years ago and a lot has changed but one thing has remained the same. Corsair still makes quality products. My current build has Corsair RAM, PSU and the case.

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

    AMAZING

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

    Really good but the cables are pretty thick so make sure your case has enough room for good cable management. Definitely should be enough power for most rigs

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

    Rated 4 out of 5 stars

    Just What I needed

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

    Easy to set up and nice quality, just what I needed.

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

    Rated 4 out of 5 stars

    Word fine

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

    Powers a 3900x, a RTX 3070 and a GTX 1080 no problem.

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

    Powerful Battery

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

    I recently bought this for my new gaming pc. Extremely powerful battery and my pc is running with no issues even when I run multiple programs and listen to music and play heavy games.

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

    Great Pair for a 2080 Ti and X299

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

    I had a 750W PSU in my PC that was causing my GPU to have coil whine. I replaced the old one with this and everything is running quiet now. Modular cables make installation super easy,

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

    Perfect PSU for new 3000 series

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

    Upgraded for my 3060ti. I've had Corsair PSUs before and have never failed me. I'm sure this will last as long as I need it to be. A bit on the expensive side tho.

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

    Rated 4 out of 5 stars

    Good PSU

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

    Runs my 1080ti , i7-8700k @ 5Ghz , 64 GB of 3200Mhz RAM, amazingly

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

    A Quality 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 PSU. I am glad it comes with 3 pcie cables. Some other PSU's only give you two. Great price and is a quality brand -Corsair. I use this with my RTX 3080.

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

    Reliable and great option for PC build

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

    Building a gaming/editing PC. I opted to go with corsair parts with 90% of the build, compatible and so far most reliable from other PC builds my friends have done.

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

    It's a PSU

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

    This is a PSU. The cables have nice labels on them. I accidentally installed it upside down but that's a personal problem.

    I would recommend this to a friend