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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.
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  • 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.
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  • 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.
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  • 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 1782 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 23 Showing 441-460 of 1,782 reviews

  • Great Quality and Price

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

    Purchased this item for AM5 build. Could not have asked for a better PSU. Has more than enough cables and connections for any build.

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

    Great

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

    Have had this for a while now and this thing has gave me absolutely zero issues

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

    Great PSU 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.

    Great power supply, upgraded from my 650 when I got a 3080. Powers everything and all looks good! My favorite brand of power supplies. Plus it’s easy to install and comes with everything you need.

    I would recommend this to a friend

  • Tank

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

    This guy is a great psu. Never had any issues with it so far and it doesn't bottleneck my computer. I’ve had another psu rated for 850W and for some reason wasnt the same quality as this one and bottlenecked my system. This one for sure is a true champ and for the price it is worth.

    I would recommend this to a friend

  • Good value

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

    Got it on my sons computer and it works perfect, arrived right on time, the price was fair. we have it for almost a month and everything working great so far. I will definitely recommend it.

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

    Top tier psu

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

    Top tier psu very silent and works great my only issue is how stiff the cables are I should’ve done more research regarding cables but if you’re patient it’s completely fine.

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

    Very Good

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

    A very good power supply for any pc. Is also somewhat easy to install if replacing an old one, just search up a youtube video on how to do it.

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

    Perfect in a pinch

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

    Perfect in a pinch. I've been using Corsair power supplies for years with no issues.

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

    must get

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

    needed to upgrade my psu, and after asking an employee this was the one i went with and am happy with it.

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

    Not bad!

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

    I bought this to replace my Seasonic Focus GX 750w. For some reason when I purchased a 3080 it could not handle it and it caused random shutdowns. Purchasing this has remedied that and as an added bonus its quiet when it shuts down (the Seasonic would always make this loud click).

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

    Great Power supply

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

    I bought this for my gaming PC and it runs beautifully. I also had Best Buy put it in my PC for me and they did a great job with cable management.

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

    Great Power Supply Unit

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

    I got this power supply to support my 3080ti and it works perfectly! I even have 3 additional RGB fans (Corsair LL12 RGB White) and it runs with no issues. I highly recommend purchasing this power supply if you want to future-proof your PC but do need 1000w of power yet!

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

    Easy to install / modular cable configurations

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

    Original PSU died on my gaming PC. This was easy to install and loved the modular cable configuration. Can confirm PC once again has power.

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

    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.

    Powers my pc with no issues. I have two monitors up with some lights and 3 different memory cards. Its also quite, i never hear it.

    I would recommend this to a friend
  • Cons mentioned:
    Coil whine

    No complaints. Great cables.

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

    I had a CX750 for 5 years and it never skipped a beat (even with SLI OC'd cards), but it did start to develop coil whine. This seems solid so far and I've been pleased with the sleeved cables that aren't found on cheaper PSUs. I expect this one to last as long as my last one.

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

    Excellent unit

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

    This power supply unit seems to be a well made model. It has a decent heft to it and does not seem to have any issues powering my PC. The only gripe I have is the CPU power cables could be slightly longer as they barely fit (with a lot of tension) in my full ATX case.

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

    850W PSU

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

    Does it's job! got it to replace my 750 that exploded on me. no problems from this at all!

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

    Corsair 850w

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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.

    Just got the Corsair 850w its nice quiet and has all the extras!

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

    Great 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.

    Purchased this and Best Buy assembled my computer parts for me at no cost with my Total Tech membership! PS is plenty powerful and comes with more than enough connections. Corsair is an excellent brand.

    I would recommend this to a friend

  • rm850x

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

    such a fair price. hooked up snug and have had zero issues

    I would recommend this to a friend
Page 23, Showing 441-460 of 1,782 reviews
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