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CORSAIR RMx Series RM850X 850W 80 PLUS GOLD Haswell Ready Full Modular ATX12V & EPS12V SLI and Crossfire Ready Power Supply

Sold and Shipped by Newegg

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • ATX12V / EPS12V
  • Full Modular
  • 80 PLUS GOLD Certified
  • 100 - 240V 47 - 63 Hz
  • +3.3V@25A, +5V@25A, +12V@70.8A, -12V@0.8A, +5VSB@3A

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews

Learn more about the Corsair RM850X (CP-9020093-NA)

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 10 years
  • Limited Warranty period (labor): 10 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
Anonymous
Ownership: 1 month to 1 year
Verified Owner
1/ 5
David 6/24/2020 10:08:26 AM

Overall Review: Horrible, product was dead on arrival. Has a electrical burnt smell inside of unit.

Did you find this review helpful?
Manufacturer Response:
Hello,

Very unfortunate issue. Were you able to get an exchange? If need be, please reach out directly and we'll do our best to help out: support.corsair.com

-Art
Ownership: more than 1 year
Verified Owner
5/ 5
The only Power supply youll ever need. 5/12/2020 12:34:05 AM

Pros: I have had this thing for going on 6 years now and have NEVER had a single issue with it. I have swapped and upgraded so many parts and and am beginning my 3rd from scratch build with it as I write this. Thing is a champ. You cant go wrong with purchasing this. Honestly everything I buy that is Corsair is always top notch and has yet to fail me even once. I might be one of the lucky ones but honestly I think they are doing something right. One cool thing about this one is that Ive watched friends purchase PS's for their builds and none of theirs came with a cool bag to store all there extra cables in. I rarely use it, but when i upgrade stuff every so often, its seriously so nice to be able to just open the bag and find the exact cable to plug in to this modular power supply for a gpu or ssd upgrade etc. Good luck PCMasteRace

Cons: Honestly cant thing of any. Almost 6 years since purchase, I took an air compressor and cleaned all my PC parts. I was curious about how much dust this thing would draw. This thing had very little dust compared to the rest of the PC... and now looks seriously brand new again... so yea, no cons.

Overall Review: Reliable
High quality cables
Does everything you need ( even for multi-Gpu Crossfire builds without fail)
Doesn't generate dust long term fr fr
Extremely quiet- NO coil whine- and I had that on my last one. Just thinking about those days makes me thank you know who that I got this.

Did you find this review helpful?
Ownership: less than 1 day
Verified Owner
1/ 5
I wish I could rate this product. 5/8/2020 10:41:02 AM

Pros: None.

Cons: It was sent to a completely different address than what I listed. I tried contacting the site, but due to high volume of people they arent able to get back to me.

Overall Review: Dont waste you time or money.

0 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Hi Christopher,

That'd be an issue with Newegg and not our product, please contact them directly instead of giving us a bad review for something we didn't do.

You can always contact us if you have specific problems with our products themselves: support.corsair.com

-Art
Ownership: more than 1 year
Verified Owner
1/ 5
Blew up 3/23/2020 8:35:31 PM

Overall Review: After a few months of use, powered my pc on and thing thing made a loud pop with a bunch of smoke. Replaced with EVGA PSU and haven't had an issue since.

Did you find this review helpful?
Manufacturer Response:
Hi Kevin,

Sorry to hear. We can definitely help you get this replaced, even if you'll just have a unit as a spare. Please contact us here: support.corsair.com

-Art
Ownership: more than 1 year
Verified Owner
5/ 5
RM850X 2/13/2020 1:17:13 AM

Overall Review: Outstanding PS working for over a year now with no issues. Have used many different branded PSU in my builds over the past 20 years and this ranks up there with the best. Highly recommend.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Solid! 7/8/2018 2:12:50 PM

Pros: its doing what i need to do pump power from the city and give my PC life!!! No hiccups but i have yet to give it another gtx1080 to test so until then ill leave it as that.

Cons: have yet to feel bad about my purchase from 2yrs ago... I'll keep y'all posted.

Overall Review: snag it if its on sale!

2 out of 2 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
Still running strong after 2 years 5/2/2018 7:48:09 AM

Pros: - Bought this back in March of 2016 and has been running perfectly ever since.
- Fully modular (cable management is awesome!)
- All the power connectors you will ever need.

Cons: None

Overall Review: Full recommend this for single GPU systems. You might run into power issues with dual GPU setups because it's 850W

0 out of 1 people found this review helpful. Did you?
Anonymous
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great 4/15/2018 12:05:27 AM

Pros: modular, quiet, lots of cable options, functions.

Cons: 8pin cpu cable is short depending on how its routed with a bottom mounted cpu. The premium cables might be longer?

Overall Review: Decent PSU and was a good deal for the price when I saw it.

Did you find this review helpful?
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  • Used - Like New : This means that the product has been opened, possibly used but is in perfect condition with no signs of cosmetic or functional defect. Product may includes warranty, and accessories found with the original product. Product may or may not be in the original packaging. Returned items with minor packaging defects fall under this category.
  • Used - Very Good : This means that the product has been opened, may show slight signs of use and cosmetic blemish, and may be missing minor accessories, but remain in excellent condition. Product does not come with warranty unless stated otherwise in product description.
  • Used - Good : This means that the product has been used, may show clear signs of use and may be missing minor accessories, but remain in good condition. Product does not come with warranty unless stated otherwise in product description.
  • Used - Acceptable : This means that the product shows clear signs of use, cosmetic defect, and may be missing minor accessories and manual, but remain in working condition. Product does not come with warranty unless stated otherwise in product description. Functionality issues beyond signs of use should be disclosed in product description.
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