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CORSAIR RMX Series RM850x 80 Plus Gold Fully Modular ATX Power Supply


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Model name RM850X
Brand Corsair
Compatible devices Personal Computer
Connector type ATX, PCI Express
Output wattage 850
Form factor ATX
Wattage 850 watts
Cooling method Air
Item dimensions L x W x H 16 x 15 x 8.6 Centimetres
Item weight 1.7 Kilograms

About this item

  • Fully modular, so you only connect the cables that your system needs.
  • A 135mm ML fan utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low noise, and superior reliability. iCUE Compatibility: No
  • EPS12V connector for compatibility with modern graphics cards and motherboards.
  • 100% Industrial-grade, 105°C rated Japanese capacitors ensure unwavering power and reliability.
  • Supports Modern Standby sleep mode for extremely fast wake-from-sleep times and better low-load efficiency.

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Product information

Technical Details

Summary

Additional Information

Warranty & Support

Amazon.ca Returns Policies:Electronics purchased from Amazon.ca, or a seller but fulfilled by Amazon, can be returned to Amazon.ca within 30 days of delivery of shipment via our online Returns Centre. These items must be in new condition with original packaging and accessories. New, used and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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CORSAIR RMX Series RM850x 80 Plus Gold Fully Modular ATX Power Supply


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CORSAIR RMX Series RM850x 80 Plus Gold Fully Modular ATX Power Supply
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Price$164.99$187.90$193.29$179.68$219.99-33% $134.99
List:$199.99
Delivery
Get it by Saturday, Jul 13
Get it Jul 16 - 23
Get it Jul 16 - 23
Get it Jul 16 - 23
Get it by Saturday, Jul 13
Get it by Saturday, Jul 13
Customer ratings
Easy to install
4.7
4.7
4.6
4.6
4.7
4.2
Noise level
4.7
4.6
4.6
4.6
4.7
4.5
Value for money
4.4
4.3
4.3
4.3
4.4
4.1
Energy efficiency
4.8
4.7
4.7
4.8
4.9
Quality of material
4.8
5.0
5.0
4.0
Sold by
Amazon.ca
Deals2You
Deals2You
Deals2You
Amazon.ca
ADATA
power supply design
Full Modular
Full Modular
Full Modular
Full Modular
Full Modular
Full Modular
connector type
ATX, PCI Express
EPS
PCI Express
ATX, PCI Express
USB
form factor
ATX
ATX12V
ATX
ATX
ATX
ATX
cooling method
Air
Air
Air
Air
Air
Air
max. input voltage
264 volts
240 volts
230 volts
system bus connector
4 Pin
4 Pin
4 Pin
4 Pin
4 Pin
4 Pin

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Product description

CORSAIR RM850x Series fully modular power supplies with EPS12V connectors are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. RM850x PSUs use only Japanese 105°C capacitors, for long life and reliability backed by a ten-year warranty. A 135mm magnetic levitation bearing fan ensures high performance coupled with low noise.

Customer reviews

4.7 out of 5 stars
4.7 out of 5
10,005 global ratings
Quality parts but cables hard to manage with the stiff sleeve holding the capacitators at ends.
4 Stars
Quality parts but cables hard to manage with the stiff sleeve holding the capacitators at ends.
Corsair rm750x PSU:This is not a review after this much time and so many reviews ... just an impression and a chance to show pictures of this unit:I bought this PSU a year and half ago for my build. It turned out to be my first and only component as pricing was so crazy. I was going to go amd 7600.But, as i have just finished my build now, i went intel 13600kf on an ASUS rog strix z690-E (pricing and compatibilty so much better now)I decided to use this corsair rm750x still because i am going to use my old nvidia rtx 2070 for awhile yet.But i was tempted to get the 12 v power connector version for the graphics card but heating issues disuaded me more. Plus, i did get this one for avery good price.SO much so that i will not upgrade the graphic power chords as that would be one third the cost of the PSU for the authentic corsair version.I am not a fan of the pig tails x 2 for the graphics. SO bulky. It was only with my extra wide lian li 216 case that i could fit them in.The two CPU cables were a challenge too with their long sleeves vs tight fit at top of case. Luckily i could remove the top of the case. even then... please see pictures.I went corsair PSU because my last one is still going strong after 9 years (hx650) no sound issues.I am very confident of the awesome quality of this PSU.I have not heard the PSU fan start up .. 2 weeks into the build now. dead quiet and cool :DI am very happy with this unit ... just not so much for asthetics (darn influencers as previously i only cared about performance).Please see pictures :)
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Top reviews from Canada

Reviewed in Canada on May 20, 2024
Style: RMxSize: 850WColour Name: BlackVerified Purchase
There is nothing to dislike. It works great.
Reviewed in Canada on April 19, 2024
Style: RMx Shift (ATX 3.0 & PCIe 5.0)Size: 850WColour Name: BlackVerified Purchase
I love this idea of 'shift' in the location where the cords usually go. This makes it so much easier for cable management since u dont have to unscrew the psu when u have to pull the cords out to reposition cords. Since when u screw in the psu, u can still access the side with cords facing you. Small difference in design but big difference when it comes to convenience. It is also silent and inaudible. There is no coil whine at all unlike the other corsair rm750 i had where it would have gentle coil whine sound even when the pc is not turned on. Silent, great cable management and powerful as it powers my msi slim 4090
One person found this helpful
Report
Reviewed in Canada on June 10, 2024
Style: RMxSize: 850WColour Name: BlackVerified Purchase
i've been using corsair power supply since thier first Tx850W non modular that i still own and still work despicite it's age. i don't exactly remember but been more than 12years running 24/7 that power had more pc than most people would've done. so was about time for an upgrade and i got this RMX850 modular on a slight deal, and i wanted a modular after owning also the hx1000i for my other rig. well won't go back to non modulare that for sure.

Everythings was sealled, not a repacked open box sold as new pretty happy, everythings was in the box no damage or missing anything. super easy to install on most of any cases. the ONLY thing i'm not fan of is the cables sleeves they're not great and doesnt bend easy. otherwise still happy with my purshase.

Definitly can recomande this psu. doesn't make a lot of noise under load, and the fan won't turn if not require so this is a good silent psu!
Reviewed in Canada on June 1, 2024
Style: RMxSize: 850WColour Name: BlackVerified Purchase
Upgraded from a low tier supplier (Huntkey) to this just for peace of mind. It works exactly as expected and being modular helped a lot with my cable management.
Reviewed in Canada on January 27, 2024
Style: RMxSize: 750WColour Name: BlackVerified Purchase
Corsair rm750x PSU:

This is not a review after this much time and so many reviews ... just an impression and a chance to show pictures of this unit:

I bought this PSU a year and half ago for my build. It turned out to be my first and only component as pricing was so crazy. I was going to go amd 7600.
But, as i have just finished my build now, i went intel 13600kf on an ASUS rog strix z690-E (pricing and compatibilty so much better now)

I decided to use this corsair rm750x still because i am going to use my old nvidia rtx 2070 for awhile yet.
But i was tempted to get the 12 v power connector version for the graphics card but heating issues disuaded me more. Plus, i did get this one for avery good price.
SO much so that i will not upgrade the graphic power chords as that would be one third the cost of the PSU for the authentic corsair version.
I am not a fan of the pig tails x 2 for the graphics. SO bulky. It was only with my extra wide lian li 216 case that i could fit them in.
The two CPU cables were a challenge too with their long sleeves vs tight fit at top of case. Luckily i could remove the top of the case. even then... please see pictures.

I went corsair PSU because my last one is still going strong after 9 years (hx650) no sound issues.
I am very confident of the awesome quality of this PSU.

I have not heard the PSU fan start up .. 2 weeks into the build now. dead quiet and cool :D

I am very happy with this unit ... just not so much for asthetics (darn influencers as previously i only cared about performance).

Please see pictures :)
Customer image
4.0 out of 5 stars Quality parts but cables hard to manage with the stiff sleeve holding the capacitators at ends.
Reviewed in Canada on January 27, 2024
Corsair rm750x PSU:

This is not a review after this much time and so many reviews ... just an impression and a chance to show pictures of this unit:

I bought this PSU a year and half ago for my build. It turned out to be my first and only component as pricing was so crazy. I was going to go amd 7600.
But, as i have just finished my build now, i went intel 13600kf on an ASUS rog strix z690-E (pricing and compatibilty so much better now)

I decided to use this corsair rm750x still because i am going to use my old nvidia rtx 2070 for awhile yet.
But i was tempted to get the 12 v power connector version for the graphics card but heating issues disuaded me more. Plus, i did get this one for avery good price.
SO much so that i will not upgrade the graphic power chords as that would be one third the cost of the PSU for the authentic corsair version.
I am not a fan of the pig tails x 2 for the graphics. SO bulky. It was only with my extra wide lian li 216 case that i could fit them in.
The two CPU cables were a challenge too with their long sleeves vs tight fit at top of case. Luckily i could remove the top of the case. even then... please see pictures.

I went corsair PSU because my last one is still going strong after 9 years (hx650) no sound issues.
I am very confident of the awesome quality of this PSU.

I have not heard the PSU fan start up .. 2 weeks into the build now. dead quiet and cool :D

I am very happy with this unit ... just not so much for asthetics (darn influencers as previously i only cared about performance).

Please see pictures :)
Images in this review
Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
3 people found this helpful
Report
Reviewed in Canada on June 11, 2024
Style: RMxSize: 850WColour Name: BlackVerified Purchase
Great product!
Reviewed in Canada on July 17, 2023
Style: RMxSize: 850WColour Name: BlackVerified Purchase
The CORSAIR RMX Series RM850x 80 Plus Gold Power Supply is an excellent choice for powering your PC. With its reliable performance, it delivers consistent and stable power to your components. Installation might pose a moderate difficulty for non-experts, but following a Youtube video should help overcome any challenges.

One standout feature of this power supply is its impressively silent operation. It keeps noise levels to a minimum, allowing for a quieter computing experience. Whether you're gaming, working, or simply browsing the web, the silent performance of the RM850x ensures a peaceful environment.

In conclusion, the CORSAIR RMX Series RM850x 80 Plus Gold Power Supply offers reliable and efficient power delivery. While installation may require some care, its exceptional quietness adds to the overall satisfaction. If you're looking for a power supply that combines performance and silence, the RM850x is definitely a solid choice.
2 people found this helpful
Report
Reviewed in Canada on April 30, 2024
Style: RMx Shift (ATX 3.0 & PCIe 5.0)Size: 750WColour Name: BlackVerified Purchase
As far as I am concerned Corsair make the best PC power supplies you can buy for the money, this one goes one step better with the Flex cable routing. No more trying to fit hand into tight spaces or having to unscrew power supply to connect power cables. Everything is completely accessible on the supplies side panel!!! Could not ask for more convenient and easy installation and setup...
One person found this helpful
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Top reviews from other countries

Amazon Customer
5.0 out of 5 stars Works great, quiet and reliable
Reviewed in the United States on June 27, 2024
Style: RMxSize: 850WColour Name: BlackVerified Purchase
I needed new power unit for my pc and this one was a good price for the wattage and it fits inside my case. It's got plenty of power and wattage to support anything and runs really quite, and it was easy to install and came with all the cables needed to hook everything back up. I would recommend this particular unit to anyone and the also the brand as well. It's quality is really good and run any pc for years to come.
One person found this helpful
Report
Peterson M.
5.0 out of 5 stars Demorou para chegar.
Reviewed in Brazil on June 7, 2024
Style: RMxSize: 850WColour Name: BlackVerified Purchase
Top10.
Jessica C.
5.0 out of 5 stars BOM
Reviewed in Brazil on June 7, 2024
Style: RMx Shift (ATX 3.0 & PCIe 5.0)Size: 850WColour Name: BlackVerified Purchase
Jose Abraham Vazquez Bolaños
5.0 out of 5 stars Bastante recomendable.
Reviewed in Mexico on May 24, 2024
Style: RMx Shift (ATX 3.0 & PCIe 5.0)Size: 1000WColour Name: BlackVerified Purchase
Necesitaba hacer upgrade de mi fuente, pues adquiri una rx7900xtx... y con el resto de componentes que tengo, necesitaba minimo 900w, pues bien esta fuente funciona de maravilla tengo bastantes años usando fuentes y memorias de Corsair y al dia de hoy no e tenido ni un solo problema con alguno de sus productos.
Esta fuente tiene un diseño NOVEDOSO, pues las conexiones modulares, en lugar de tenerlas por la pate de atras, los tiene a un costado, si bien no para todos puede ser funcional por el tamaño de su gabinete, a mi me fue de lujo de hecho por eso la compre, y la gestion de cables fue mas facil en mi gabinete Thermaltake View 51.
Tiene conexiones listas ya para las nuevas tarjetas graficas y gestion de energia necearias para las mismas.
Ricardo Zamora
5.0 out of 5 stars Buena calidad/precio
Reviewed in Mexico on January 10, 2024
Style: RMxSize: 850WColour Name: BlackVerified Purchase
Muy buena fuente de poder, fácil de instalar y para el gabinete que tengo quedo perfecto en tamaño, cables que se notan de muy buena calidad 10/10, el ruido es poco y casi ni se nota
2 people found this helpful
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