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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 1785 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 62 Showing 1,221-1,240 of 1,785 reviews
  • Pros mentioned:
    Power supply

    quiteeee

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

    expensive but quite and powerful, yeah that's all I can say

    No, I would not recommend this to a friend

  • Nice power supply with dual CPU power

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

    Nice power supply with dual CPU power. Includes lots of modular cables. Only install the ones you need so your case is not full of unused cables.

    I would recommend this to a friend

  • Great PSU for gaming rig

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Runs my rig great!! Ryzen 5 CPU, nVidia 3080, ASUS MB, 32GB RAM, SSD storage, 3.5” HDD. Overspec-ed a little on the PS, but I didn’t want it to strain and produce more heat and associated fan noise.

    I would recommend this to a friend

  • SDR

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

    My nephew is building himself a new computer and this CPU was highly recommended!!!

    I would recommend this to a friend

  • Love Corsair

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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.

    Great psu, cant go wrong with a Corsair, especially this series. This is the new model for 2021. I replaced my thermaltake psu for this one,.... just better piece of mind. Expecting it to last a very long time.

    I would recommend this to a friend

  • Solid pick

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

    Excellent PSU. good value for what you get. There's cheaper out there of course but it's risky on quality.

    I would recommend this to a friend

  • Corsair Power to Spare!

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

    Perfext pairing for a highend GPU. Has a siper quiet mode and didnt break the back. Great warranty as well.

    I would recommend this to a friend

  • Core

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

    As a returning customer this product helps the overall rating of the pc system.

    I would recommend this to a friend

  • Very good 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.

    Very good power supply as long as your not using it with a 3090 overclocked, then you need something a little bigger

    I would recommend this to a friend

  • Must have

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

    First time PC builder a little confusion when it came to all the cables included but YouTube will guide you. All in all I can’t complain works great and love the additional fan.

    I would recommend this to a friend

  • Thank u best buy

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This came in cluth because i was having psu problems so since this was a 1 day shipping i didnt have to.waot long

    I would recommend this to a friend

  • Super easy install.

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

    My previous power supply gave out and after some research found this one in stock. Works great, can't go wrong with Corsair.

    I would recommend this to a friend

  • Okay

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent powersupply but fan never turns on even in cinebench or raids in wow for ahour

    I would recommend this to a friend

  • Reliable

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

    Ended up not being enough wattage for my machine, but it was perfect for the rig I built for my kids.

    I would recommend this to a friend

  • A great power supply

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Amazing psu. Has done everything it’s advertised to do. And both Best Buy and Corsair have an unbeatable warranty which is what REALLY matters when it comes to power supplys

    I would recommend this to a friend

  • Good Quality but not impressed with the wires

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

    Previous Power Supply Unit of 700 was not enough for build. This one fixed issue. The wires that come with the PSU have excessive heat shrink making bends close to the connection impractical. Bought aftermarket leads to fix issue but also adds to the cost. If not worried about making a turn near connection then it is just fine.

    I would recommend this to a friend

  • It works

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

    Nice product it works but the cables are really thick and have rubber on the middle section making it harder to bend. As you can see that makes it hard to Cable manage when your getting ready to close your PC. But with some playing around you can manage to squeeze them in.

    I would recommend this to a friend

  • Great PSU, Corsair does it again!

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This PSU is awesome. Definitely future proof for a few years. Highly recommended.

    I would recommend this to a friend

  • 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.

    Went from the 750 to the 850 and once again best had exactlly what i needed! Thank u!

    I would recommend this to a friend

  • beast of a 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.

    850 watts is more than enough for my 3080 and 5700x, but i know i can upgrade and not have to buy another psu...

    I would recommend this to a friend
Page 62, Showing 1,221-1,240 of 1,785 reviews
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