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  • Front. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 11. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 12. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 13. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 14. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 15. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 16. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 17. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 18. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 19. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 20. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 21. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 22. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 23. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 24. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 25. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 26. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 27. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 28. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Alt View 29. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
  • Step-by-Step Instructions to Build a PC video 6 minutes 35 seconds
  • CORSAIR How to Build a PC - How To Video video 1 minutes 34 seconds

CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black

Model:
CP-9020200-NA
SKU:
6459244
Highly rated by customers for:
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 46 Showing 901-920 of 1,783 reviews

  • 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.

    Great power supply hasn’t failed me yet supports all my pc components and still has a little more power for one or 2 more upgrades

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

    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.

    Power supply works great with 0 issues. Would recommend

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

    Power supply

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

    Bought because I upgraded my gpu. Great flexibility for whatever rig you have. Was easy to install.

    I would recommend this to a friend

  • Power supply

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

    When you need a reliable power supply, this is the way to go my system, fully overclocked no issues with power delivery

    I would recommend this to a friend

  • Whoa, is this thing even on?

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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.

    Wow, I have never had a power supply this quiet. It’s freakishly silent. Maybe it’s because my CyberPower prebuilt used a bottom feeding Aptive PS that sounded like a Studebaker on it’s last leg, but it was a way simple swap out and really nice to bring the PS up to the quality of the rest of the build (I had already dumped the cheap memory.)

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

    Works good

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

    The PSU works really well in my new system, easy to install and setup

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

    Perfect for my PC

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

    Great power supply we might PC no issues here. Great for gaming.

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

    Great piece

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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.

    Cheap and reliable, nothing extra and out of sight in my build overall pretty good

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

    Works great

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

    It was pretty easy to install and comes with a lot of different options to install. Its very organized as well.

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

    Great PS

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

    Good power supply came recommended by many i have 0 complaints

    I would recommend this to a friend

  • Great PSU!

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

    Excellent performance, stability, and quiet. Not a whole lot to say, it’s a power supply. It does exactly that and does it well! I do NOT like the massive shrink wrapped ends of the sleeves cables. It makes what would otherwise be a very clean install look messy at the termination points. Different, thinner, and more flexible shrink wrap should have been used at the termination points.

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

    Powers my 3090 like a beast!

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

    I purchased this psu to run my 5900x 3090 PC and it has worked beautifully! Very happy with this purchase

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

    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.

    This worked great in my sons computer. Powerful enough for all his gaming and pc endeavors.

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

    Perfect power supply

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

    Great power supply. works better then my other. I recommend this to all.

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

    Silent and works great!

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

    I upgraded the 550 watts PSU. The fan does not even start to spin until its under load! No problems so far!

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

    Great product for the price

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

    Easy modular psu, includes everything you need, and the cables are sleeved nicely

    I would recommend this to a friend

  • powersupply

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

    Great powersupply for the money easy to install and to setup

    I would recommend this to a friend

  • Excellent 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.

    Corsair RMx Power supplies are always amazing and I have used several on multiple PC's with no complaints. You get plenty of high quality steel braided cables, everything is clearly labeled, and the PSU itself is high quality. Not much else to say about these and I always recommend them.

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

    great with a small potentially rare issue

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

    I haven't had an issues with this power supply besides one faulty gpu power cable, other than that it is great

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

    Quiet but powerful

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

    Works great for my gaming PC. Very quiet and fully modular is always a plus

    I would recommend this to a friend
Page 46, Showing 901-920 of 1,783 reviews
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