Last-Minute SavingsLimited quantities.Shop now

Skip to content
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $149.99

Customer reviews

Rating 4.8 out of 5 stars with 1783 reviews

Rating Filter

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 35 Showing 681-700 of 1,783 reviews
  • Rated 5 out of 5 stars

    Easy Upgrade

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

    Easy installation. Needed to upgrade from my 650w and this was an incredible option.

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

    Great PSU

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    When I was building my computer, I had to do a lot of research of which PSU would be perfect for me. I end up getting this PSU. I’ve had this for about 2 years now and it never failed me.

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

    Rated 5 out of 5 stars

    Great upgrade to any PC

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

    It was just what I needed when my old power supply died out and seems to work great!

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

    Rated 5 out of 5 stars

    Great

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

    Great power supply. I needed a new one because my 750 didn’t have enough connectors for my GPU. I always go with Corsair for the quality and customer service.

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

    Rated 5 out of 5 stars

    Good power supply

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

    This 850 has the extra power supply to the ATX for the GPU and other peripherals. The supply works really well.

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

    Rated 5 out of 5 stars

    Easy to work with

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

    Easy to install and work with. Plenty of power for Ryzen 7 7700x, RX7900XT, 1 SATA drive, 1 NVME, and fans.

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

    Awesome

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

    All cables are clearly labeled and is extremely easy to use. Included are zip ties and many spare cables. Does not include SATA cables though, only SATA power.

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

    Rated 5 out of 5 stars

    Good PSU

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

    Very quiet power suppy and excellent modularity for cable management

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

    Rated 5 out of 5 stars

    Get it!

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

    Great product! Paired it with my 4070ti and 5800x and now my pc runs flawlessly!

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

    Rated 5 out of 5 stars

    GREAT POWER SUPPLY

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

    Very good module power supply, did everything I needed it to do and is functioning great!

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

    Rated 5 out of 5 stars

    Fully modular is a blessing!

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

    Bought this to replace my EVGA 500BR and for futuring proofing. Going from non-modular to fully modular is a blessing. Only need to use cables that are needed.

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

    Rated 5 out of 5 stars

    Good power supply

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

    My power supply went out and replaced with this one and was able to power my highend pc

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

    Rated 5 out of 5 stars

    Great power supply

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

    It does what it's supposed to do and it does it quietly. It's powering an RTX 4080 and 13700KF with no issues!

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

    Good PSU

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

    Perfect for a Mid tier build. The individual cables make management a breeze.

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

    Rated 5 out of 5 stars

    Quiet. Great for gaming.

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

    Very quiet. Fan hardly has had to kick on, even when gaming. Has worked flawlessly so far. Shipped and delivered on time.

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

    Unleash the Gold Standard!

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

    Just installed the Corsair RM850x 80 PLUS Gold Power Supply, and it's a beast! The fully modular design made cable management a breeze, and the sleek black finish adds a touch of sophistication to my rig. With 80 PLUS Gold efficiency, it's not just powerful but also energy-efficient. Corsair nails it with this one – five stars for performance and style!

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

    Rated 5 out of 5 stars

    Great

    |
    |
    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Reliable and modular, use the cables you need and nothing that you don't!

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

    Good

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

    Good buy, didnt have to instal my self, had the total tech memebership so they did all the work would recommend.

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

    Rated 5 out of 5 stars

    Nice PSU

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

    Works amazing and so far never given any issues. Replaced a dying 700 watt thermaltake.

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

    Super power supply

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

    It has everything you need to build your PC. Plenty of cables and open ports to plug everything in no issues at all.

    I would recommend this to a friend