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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 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 39 Showing 761-780 of 1,783 reviews
  • Pros mentioned:
    Noise level

    It works!

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

    The PSU works. No issues, just plug and play. It's fairly quiet.

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

    Cadillac of Power Supplies.

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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 Cadillac power supply. Love the modularity and the contemporary features. I only trust Corsair in my Towers.

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

    Too good

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

    This psu is powerful enough to take care of all your needs with your PC...power wise...and then some. Highly recommend

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

    Great, highly recommend

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

    excellent and made my system sound a lot quieter than the previous one I had.

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

    Great psu

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

    Fully modular power supply came with every wire I needed to get my system up and running and some extras for future upgrades

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

    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.

    Good solid product. gives me more than enough power an built to last.

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

    The best choice!

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

    Works great with no issues! Would definitely recommend and certainly buy again!

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

    Working great. UNLIMITED… POWER!!!

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This bad boy is a power house. Have had no issue running my 1660ti with amd 5600x and 16 gb ram.

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

    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.

    Good for power hungry video cards. Highly recommended.

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

    Solid and quiet power

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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.

    I bought this after I acquired an Nvidia RTX 3080. My old power supply just wasn't cutting it. This one is working great, and is nice and quiet.

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

    Great PSU

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

    Way quieter than my old PSU, and certainly much more stable.

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

    MAD POWER!!!!!!!

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

    Very awesome power Mad POWER! Jsndjxjdjsjxjjxjsksjsjs

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

    Great Upgrade in 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.

    I have been upgrading my computer and finally updated the power supply. The Corsair works great and I have had no problems since I installed it.

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

    Never let me down...

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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.

    Corsair power supplies have never let me down over the years. I have 2 of the RM850x's and they both power a 3090 and 3080Ti no problem.

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

    Gaming pc is happy

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

    Used this inside my new gaming pc. The fact that it is fully modular was nice. Had to purchase a separate cable from corsa for my 4080 so it lost a star.

    I would recommend this to a friend

  • 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.

    Installed this PSU into an existing build because I added an RTX 4070 Super. Used two PCIe cables from PSU to 12VHPWR adapter that came with the GPU. Everything works great.

    I would recommend this to a friend

  • Great power supply, potentially questionable QA

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

    The power supply worked as intended and is well rated on sources like the PSU tier list. I can’t judge it in the long term, but in the short time it’s great. The reason it’s not 5 stars is that the first one I received had a lose part inside which was concerning but BestBuy was willing to refund me quickly and I bought a new one that arrived next day.

    I would recommend this to a friend

  • Great so far but no sleeved cables is sadness.

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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.

    I mean its kind of hard to review PSUs. It works... lol. Anyways my system components: 7800x3d, Asus B650E-F Gaming, Corsair 32GB DDR5 6000 C30, EVGA 3070FTW3, Corsair H150i LCD with its three rgb fans plus 3 more rgb fans up top, 2 990pro nvme drives. The gpu is curve optimized, the cpu has pbo enabled with -30 to all cores and expo profile enabled. The PSU has handled all the above so far. My only complain is that why not just include sleeved cables in 2023... in this day and age not including sleeved cables is just a waste.

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

    Quality, easy to plug and play

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

    Super easy to plug and play. I had no issues with this power supply at all.

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

    Corsair Quality

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

    Excellent build quality, cable quality, and noise level. It's very quiet and easy to assemble.

    I would recommend this to a friend
Page 39, Showing 761-780 of 1,783 reviews
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