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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 30 Showing 581-600 of 1,846 reviews
  • Pros mentioned:
    Modular

    Rated 5 out of 5 stars

    Works as intended

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

    With PSUs hard to come by right now I was pleasantly surprised to find this unit at Best Buy for a reasonable price. Modular, 80 plug gold rated. No complaints.

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

    Rated 5 out of 5 stars

    Solid, reliable, decent price. No complaints

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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.

    Solid, reliable, and very quiet. PSU and its wires feel well-built and high-quality. Includes a decent smattering of cables to suit most needs.

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

    Rated 5 out of 5 stars

    Great OEM PSU Replacement

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

    We had a transistor short out in the OEM PSU that came with our pre-built computer. This has more power, a better warranty, and no issues to date. Love it.

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

    Rated 5 out of 5 stars

    Great power supply does the job

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

    Bought this to replace a 10 year old Antec supply which was causing random reboots. The modular design and wide variety of included cables made for an easy and cleaner replacement.

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

    Rated 5 out of 5 stars

    good 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.

    Very solid power supply. Cables are above average quality. The only complaint I have is the 8 pin pcie is split to 2 connectors.

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

    Rated 5 out of 5 stars

    I can run my car off this beast

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

    Plenty of power so much I had to Leash it....this power supply pulls like a peterbuilt....it’s a beast and when I plug it in my whole blocks lights dimmed...

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

    Rated 5 out of 5 stars

    Perfect

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

    I bought this product to build a pc and let me say I loved it this power supply has not failed and it it perfect for gaming 10/10 for streaming

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

    Rated 5 out of 5 stars

    The Best Is Here! Great Sale Price!

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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 The Only One You Should Be Looking At To Buy For Your Build, I've Purchased This For Every Build And Never Had Issues !

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

    Rated 5 out of 5 stars

    Great power

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

    My son needed more power with his new graphics card, so we picked this up, easy install, modular is great, less clutter. Works awesome so far

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

    Rated 5 out of 5 stars

    Works great!

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

    Needed to upgrade the size of my PSU when upgrading from my Single Nvidia GTX 1080 to Dual RTX 2080s and this did the job.

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

    Rated 5 out of 5 stars

    Best PSU

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

    Best power supply. I use Corsair for all builds and could not be happier. If you need quality at a fair price then go ahead and add this to your cart!

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

    Rated 5 out of 5 stars

    Great power supply without a question.

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

    I've had this power supply for over a year, and it works great. Currently runs my I7 8700K and 3080 without an issue.

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

    Rated 5 out of 5 stars

    Wonderful 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.

    I think it's a great PSU for those who are upgrading or building a new system. The RMx 850 is very quiet and has all the necessary power if I need to upgrade a part.

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

    Rated 5 out of 5 stars

    Great so far

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

    Installation was easy. Cables were long enough! Connectors were not too hard to figure out. The PSU is almost silent! I am very pleased with this purchase.

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

    Rated 5 out of 5 stars

    Great PSU

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

    Nice power supply, great covered cables. Little overkill for my set up, but I wanted the upgradability down the line if I wanted better components!

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

    Rated 5 out of 5 stars

    Corsair are good products.

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

    I found this PSU to be plenty powerful to do the job. It is running my Computer without any strain with one of the higher end Graphics cards. "Thanks, Best Buy and Corsair".

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

    Rated 5 out of 5 stars

    Psu

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

    Possibly the best psu I have ever owned. Works flawlessly and super quiet. It’s also Corsair which is the best brand IMO and its gold standard

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

    Rated 5 out of 5 stars

    EXCELLENT PRODUCT!

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

    Perfect! This was a replacement for a Corsair CTX650 which made my PC crash every day. RM series is more reliable and there was not a single crash

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

    Rated 5 out of 5 stars

    The Only PCU You'll Ever Need

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

    80+ Gold means it will last. 850W means it will power your PC builds for the next 10 years. Buy a good PCU like this and never buy another.

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

    Great all around PSU

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

    Very quiet, works well so far. Includes all your cables. Wish the cables were designed a little better to look cleaner but they work fine

    I would recommend this to a friend