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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 48 Showing 941-960 of 1,783 reviews

  • Great power supply but disappointing changes

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

    This was not a pleasant surprise. Like another review says they changed the selection of cables that come with this power supply from the previous model. Who needs 3 cpu cables? And now only 2 pcie cables are included?? The previous velcro bag was nice but not a big deal. This is a step BACKWARDS!

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

    Works

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

    Powered my 3080 fine and every worked as it should no issues

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

    The last one lasted 10 years

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Replacing my almost 10 year old Corsair CX800. Hoping this one holds up just as well.

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

    Premium

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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 an excellent power supply. Highly recommended

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

    Great brand 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.

    Would definitely recommend best power supple i have owned.

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

    it works

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

    easy to install plenty of options for varied needs

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

    PSU

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

    One of the best companies for PSUs great reliability and never had issues.

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

    Does it’s job, but ended up exchanging for 1000w

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

    Does it’s job. Stays cool, runs quietly, and easy modular design. Should come with more than 2 PCIe cables though

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

    Good choice.

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

    So far so good. Purchased to meet requirements for a 6900XT and so far it has performed flawlessly.

    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.

    one of ther best psus on the market for the price thjese are hard to beat

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

    Good psu

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

    Runs very cool and quiet. Has plenty of ports too.

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

    Power supply

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

    Work great no problems and comes with everything ready to go.

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

    Power to the PC

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

    Amazing PSU that is fully modular. Great product by a great company.

    I would recommend this to a friend

  • Not noisy, either

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

    This guy was pretty good. I wish power supplies these days would come with just the 4-pins and not the 4-pin with another 4-pin branching off. Like, I had to plug in two separate 4-pin cables to my video card and then I've got these additional little vestigial nubs hanging about mucking up my otherwise clean case look. Bought some slick extending cables, though, and hid those badboys out of sight, so now we're all shiny.

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

    Good PSU for 3080

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

    Bought to replace a faulty PSU. This has fixed all my problems with my 3080 and has been great.

    I would recommend this to a friend

  • Amazing

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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.

    I love it, works great with my Pc. I had my doubts but it works!!!!

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

    Good PSU

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

    Great power supply. The unit has enough hookups for your hardware.

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

    Maybe the only good thing...?

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

    Great and reliable product. One of the best DIY PC building parts in the entire store hands down.

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

    Good amount for 3080

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

    I bought this for using install a RTX 3080 and it's enough power to run it.

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

    Excellent quality

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

    My last one worked for 7 years. This one is very quiet .

    I would recommend this to a friend
Page 48, Showing 941-960 of 1,783 reviews
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