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Corsair AX Series, AX850, 850 Watt, 80+ Titanium Certified, Fully Modular Power Supply

4.6 4.6 out of 5 stars 146 ratings

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Eligible for Return, Refund or Replacement within 30 days of receipt
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt. You may receive a partial or no refund on used, damaged or materially different returns.
850 Watts

About this item

  • 80+ Titanium Certified for the highest level of efficiency and performance
  • Zero RPM fan mode for near-silent operation at low to medium loads
  • World Class electrical performance for incredibly stable voltages and ultra-low ripple noise
  • 135mm cooling fan with true FDB Bearing delivers Low-Noise operation even at demanding loads
  • Three-color customizable magnetic side labels let you choose your PSU's style to match your build

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Corsair AX Series, AX850, 850 Watt, 80+ Titanium Certified, Fully Modular Power Supply
Corsair AX Series, AX850, 850 Watt, 80+ Titanium Certified, Fully Modular Power Supply
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Price$225.60$209.99-7% $204.99
Typical:$219.98
$139.99-21% $109.99
List:$139.99
-17% $74.99
List:$89.99
Delivery
Get it Mar 26 - 29
Get it as soon as Monday, Mar 25
Get it Mar 26 - 28
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Customer Ratings
Noise level
4.6
4.5
4.4
4.4
4.5
4.4
Energy efficiency
4.5
4.6
4.3
4.3
4.5
4.0
Easy to install
4.4
4.5
4.5
4.5
4.4
4.7
Value for money
4.6
4.3
4.3
4.2
4.3
Quality of material
5.0
4.1
4.1
4.2
Sold By
iT Hardware
Mateo National Wholesale LLC
QualityPcParts․com [Expedited] ⓐVerified Seller ✅
Amazon.com
Amazon.com
Amazon.com
power supply design
Full Modular
Full Modular
Full Modular
Full Modular
Full Modular
Semi-Modular
connector type
PCI Express
PCI Express
PCI Express
EPS
PCI Express
form factor
ATX
EPS12V
EPS12V
EPS12V
ATX
cooling method
Air
Air
Air
Air
Air
Air
system bus connector
8 Pin
8 Pin
8 Pin
8 Pin
fan count
1
1
1
1
1
1

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Corsair AX Series, AX850, 850 Watt, 80+ Titanium Certified, Fully Modular Power Supply


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Product Description

Corsair ax series fully modular power supplies deliver 80 Plus Titanium efficient power and ultra-low-noise operation to complete your most ambitious builds. The highest quality internal components and all-Japanese 105 Degree rated capacitors provide the tightest voltage regulation and lowest ripple noise, delivering only the highest quality power to your PC. A 135mm fluid-dynamic bearing fan with Zero RPM mode only turns on when needed, ensuring virtually silent operation at low and medium loads. Fully modular flattened cables make building or upgrading your PC easy as you only need to install the cables your systems requires. With the strength of 80 Plus Titanium efficiency, and the subtlety of near-silent operation, the Corsair ax series is ready to power the world's best PCs for years to come.


From the manufacturer

AX850

World Class Electrical Performance

Superior voltage regulation and minimal ripple/noise ensures the highest quality and most consistent power for your PC, keeping your system stable and unlocking your motherboard’s true potential for overclocking.

AX850

80 Plus Titanium Certified

The AX850 delivers power at up to 94% efficiency, lowering energy consumption, noise, temperatures, and your power bill.

Certification ID: 5290

AX850

100% Japanese 105°c Capacitors

By using high-end electrolytic capacitors, AX Series power supplies offer the unwavering power and long-term reliability you demand from CORSAIR.

AX850

Zero RPM Fan Mode

The AX Series’ cooling fan doesn’t spin until you need it, for near-silent operation at low and medium loads.

AX850

135mm Cooling Fan

Immensely powerful airflow, low noise operation and longer life thanks to a true Fluid Dynamic Bearing (FDB) fan.

AX850

Fully Modular Cables

Use only the cables you need for quick and easy installation, with stylish sleeving to simplify routing and cable management. Store your unused cables in the included cable bag.

AX850

Customizable Magnetic Side Labels

Customize your PSU to match your system’s style with three included magnetic side labels in red, white or blue.

Learn How To Install


Fully modular power supplies by CORSAIR make installation quick and easy. Decreasing the time it takes to build by only using the cables you need for your system and increasing the degree of customization in your system with a wide variety of different cable colors options.

Looking for specific info?

Customer reviews

4.6 out of 5 stars
4.6 out of 5
146 global ratings

Customers say

Customers like the value, noise level, quality and cables of the power supply. For example, they mention it's designed well for the price range, very quiet and has an amazing efficiency. That said, they appreciate the cables and transport bag that comes with it.

AI-generated from the text of customer reviews

6 customers mention6 positive0 negative

Customers are satisfied with the value of the power supply. They mention it's designed well for the price range, and is a great product. Some say that the product is expensive but worth it.

"...This company's rep is still very good. I have plenty of power for my accessories...." Read more

"...Nicely labeled and package. Expensive but is worth it. So far it has not blown up my system , been in operation for about 2 months straight." Read more

"Great PSU, very quiet, with an amazing efficiency and also modular with is a plus." Read more

"...Overall it's designed well for the price range it is at.The bad?..." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the noise level of the power supply. They mention that it is very quiet, with amazing efficiency, and modular. Some say that they have never heard any fan sounds.

"...PSU is dead silent, never heard any fan sounds. Power distribution is VERY stable and has miniscule to no fluctuations...." Read more

"Great PSU, very quiet, with an amazing efficiency and also modular with is a plus." Read more

"...So far, it's been running smooth, quiet, and with zero hiccups." Read more

"...Now on to the product. Very quiet and works as intended so far....Cables are terrible to work with as they are big and stiff even when working with..." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the quality of the system power device. They mention that the components and the unit itself are of top notch quality. Customers also appreciate the large fan that comes with the product.

"...The badges and kit that comes with the PSU are top notch quality...." Read more

"...The unit itself is sturdy, and comes with a large fan to cool itself down under heavy load...." Read more

"Solid, quite and effective..." Read more

"Solid choice...." Read more

3 customers mention3 positive0 negative

Customers appreciate the cables that come with the system power device. They say it contains all the essential cables for their PC. Some customers also mention that the cables are different and in a handy transport bag.

"...It comes with many many different cables, a handy transport bag with everything you could to think of. This took my streaming PC to the next level...." Read more

"comes with all the cables you will need for the current ASUS Crosshair MOBO. Super quite. and runs cool at 450w loading...." Read more

"...optional magnetic strips to showcase the PSU, and a pouch containing all the essential cables for your PC...." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the efficiency of the system power device. They mention that it is very quiet, has amazing efficiency, and is modular. Customers also say that it provides reliable and energy efficient power for their home-built PCs.

"...recommend these power supplies to all who need reliable and energy efficient power for their home-built PCs." Read more

"Great PSU, very quiet, with an amazing efficiency and also modular with is a plus." Read more

"really good power" Read more

Product Failed after Less than a Month
1 Star
Product Failed after Less than a Month
This product is garbage. I thought buying top the line brand PSU and model would ensure good longevity...but I was wrong. See photo above from trusted repair company explaining the failures after less than a month of use. DO NOT BUY! Won’t be using this company’s line for Power Supplies ever again.
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Top reviews from the United States

Reviewed in the United States on March 31, 2019
Size: 850 WattsVerified Purchase
One person found this helpful
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Reviewed in the United States on June 27, 2020
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Reviewed in the United States on January 6, 2021
Size: 850 WattsVerified Purchase
Reviewed in the United States on January 12, 2020
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Reviewed in the United States on August 2, 2020
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Reviewed in the United States on September 18, 2019
Size: 850 WattsVerified Purchase
Reviewed in the United States on October 28, 2019
Size: 850 WattsVerified Purchase
Reviewed in the United States on July 20, 2019
Size: 850 WattsVerified Purchase

Top reviews from other countries

Translate all reviews to English
Gorden
5.0 out of 5 stars great power supply
Reviewed in Canada on September 4, 2020
Size: 850 WattsVerified Purchase
Steven
5.0 out of 5 stars Quiet, cool and powers my RTX3080
Reviewed in Canada on June 1, 2021
Size: 850 WattsVerified Purchase
samuel Laurier Lafrance
3.0 out of 5 stars Great PSU, low quality cables.
Reviewed in Canada on April 15, 2020
Size: 850 WattsVerified Purchase
Sylvain
5.0 out of 5 stars Excellent
Reviewed in Canada on September 19, 2020
Size: 850 WattsVerified Purchase
Amazon Customer
5.0 out of 5 stars Great!
Reviewed in Canada on May 6, 2021
Size: 850 WattsVerified Purchase