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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 15. CORSAIR - RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply - Black.
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  • 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.
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  • 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.
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  • 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 33 Showing 641-660 of 1,783 reviews
  • Pros mentioned:
    Noise level

    Lovely

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

    Great product. Works as it should and not loud at all.

    I would recommend this to a friend

  • Just a Great Power Supply

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

    Got this as a replacement for my old power supply, and because I upgraded to a 3060 graphic card, so this fits perfectly in my build. I don't hear it turn on as my PC is rarely pushed hard enough to have the fan turn on. The only issue was the back plate didn't secure itself easily and I had to redo it twice before I got it to fit perfectly. That's the only issue it wasn't a 5/5 on ease of use but not enough to drop it to an overall 4/5.

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

    Great and very quiet.

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

    It's a corsair, you cannot beat the quality and performance. Sure you can purchase cheaper supplies, but are you willing to risk your pc on saving a couple bucks?

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

    Quiet and powerful

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

    Super super quiet and it handles my rig amazingly well (lots of RGB and a 3070. The full modularity is actually very handy. Not much else to say. Super solid and great quality

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

    Easy setup

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

    Its a power supply, so it supplies power. I will say i do recommend

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

    Excellent choice.

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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 this for a short period of time and returned it. There was nothing wrong with it but exchanged it for the Evga 850 GT. I wish I had kept the Corsair.

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

    Wonderful

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

    Great! Product is super solid, easy to use and works like a charm.

    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.

    This is a very quiet power supply! Highly recommend it.

    I would recommend this to a friend

  • Great power supply at a compeditive price

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

    Great quality power supply for a decent price. Was happy to see these in stock and at a competitive price compared to other sources.

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

    Amazing

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

    It was amazing I never had no problems with it or any trouble with it

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

    Quiet and nice

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

    Quiet and powerful I run a 4070 ti super with this

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

    Good product

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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. It works perfectly until now, I have been using it for 1 month only so I hope that last for a long time.

    I would recommend this to a friend

  • PSU

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

    Very good power supply unit and easy to install bestbuy is my go to store for anything computer related

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

    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.

    Can power most high end PC’s no problem. Necessary for high end Graphics Cards.

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

    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.

    Best power supply that you can get! Works great on my built pc!

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

    Psu

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

    Easy to install and works great with my 2080 super

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

    Great product

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

    Easy to install. My 14 year old son loves it. Great for beginners.

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

    Great PSU

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

    Easy to install, great price for the wattage and you dont have to have a million wites all over your pc

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

    Awesome!!

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

    Works perfectly! No issues! I would def recommend!

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

    Another Great Power Supply from Corsair

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

    Great PSU, works perfect, and is very quiet! Highly recommend!

    I would recommend this to a friend
Page 33, Showing 641-660 of 1,783 reviews
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