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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 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 1784 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 55 Showing 1,081-1,100 of 1,784 reviews
  • Pros mentioned:
    Power supply

    Awesome

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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, able to handle everything i throw at it

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

    Gaming

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

    Good power supply handles all my gaming experience

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

    A good psu, but expensive in price.

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

    Fully modular, under small loads no fan and less of a mess

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

    Awesome buy

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

    Excellent power supply. Extensive cable selection.

    I would recommend this to a friend

  • Power supply 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.

    The 850w gives me more than enough for what I needed on my pc build. Does have some weight to it but plenty of connections to install everything. Currently have 6 fans including the liquid cooling and I have room to add more

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

    Excellent psu

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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.

    Excellent power supply does the job I will recommend this

    I would recommend this to a friend

  • ENOUGH POWER FOR MY 4080

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

    Corsair 850w was enough for my build. Luckily the 4080 isnt that power hungry . Works smooth works great no issues was a little worried since this is my first time installing a PSU but i did it

    I would recommend this to a friend

  • Working power source

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

    Our son was attempting his first computer build. He had ordered most of his parts from Amazon. Everything was in place, he turned the computer on and… nothin’. We took it into geek squad and they diagnosed the power source was not working. They put in this unit and voilà, the computer booted up. Thank you geek squad!

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

    Well made product

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

    Amazing power supply. Exceeds expectations for any set up

    I would recommend this to a friend

  • Excellent

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

    Just got this installed and now my graphocs card doesnt keep restarting, when ever i need computer components best buy is where i go.

    I would recommend this to a friend

  • Had to buy this for my 3080ti

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

    This was an unexpected purchase. Everyone said a 750W P/S was enough for a 3080ti but that would depend on your overall system config, as well as whether you're OCing or not. When I bought my 3080ti, it tripped the OC protection on my old P/S, and had to upgrade to this one. The biggest downside is that the 2020 model only comes with two PCI-E cables (vs. the 2018 model with three), despite what the packaging and modular ports say. If you buy a GPU that needs three PCI-E connectors and you don't wish to use the pigtails, you'll have to buy more cables from Corsair.

    I would recommend this to a friend

  • Power supply

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

    I have nothing but great things to say about Corsair products they have excellent quality and I highly recommend them and this power supply is awesome handles everything I’ve thrown at it no problems

    I would recommend this to a friend

  • Great product

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

    Bought it in a rush because I forgot to order one for my PC build. It fit well in my tower and was easy to install. I've had my PC up and running for a few weeks and I haven't had any issues.

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

    Great 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.

    Best power supply to be able to future proof your build for any power upgrades

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

    Corsair RM850x 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.

    Love this corsair power supply Quiet and dependable

    I would recommend this to a friend

  • Gaming

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

    Exactly what I was looking for. My gaming experience has improved.

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

    Computer part

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

    Working great so far. Better than what I had before.

    I would recommend this to a friend

  • Great replacement

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

    My old power supply stopped working so I was stuck looking for a quick replacement. Luckily, this item was in stock and had all of the needed connectors. I hooked it up and was back in business in no time at all.

    I would recommend this to a friend

  • Nice one recomendes

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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 product out there nice for the price

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

    Corsair 850w psu

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

    Definitely a solid psu, enough to run my setup and prolly then some

    I would recommend this to a friend
Page 55, Showing 1,081-1,100 of 1,784 reviews
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