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CORSAIR AXi Series, AX1200i, 1200 Watt, 80+ Platinum Certified, Fully Modular - Digital Power Supply

3.9 3.9 out of 5 stars 711 ratings

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1200W

About this item

  • Digital Signal Processor (DSP) for delivering extremely clean, efficient power with real-time adjustments
  • Corsair Link Integration for monitoring and adjustment of performance, noise, and OCP settings
  • 80 PLUS Platinum Efficiency for lower power usage and energy costs
  • Fanless operation at low loads, for outstanding noise reduction
  • Fully Modular low profile cables for easy installation and less clutter
  • Ten year warranty: Your guarantee of reliable operation that will last across several system builds

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CORSAIR AXi Series, AX1200i, 1200 Watt, 80+ Platinum Certified, Fully Modular - Digital Power Supply
CORSAIR AXi Series, AX1200i, 1200 Watt, 80+ Platinum Certified, Fully Modular - Digital Power Supply
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Price$298.02-38% $139.99
Typical:$223.99
$436.71-25% $194.99
List:$259.99
-22% $194.99
List:$249.99
-10% $234.99
List:$259.99
Delivery
Get it Mar 19 - 22
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Customer Ratings
Easy to install
4.1
4.5
4.4
4.5
4.5
4.3
Noise level
3.9
4.5
4.4
4.5
4.5
4.4
Energy efficiency
3.8
4.6
4.4
4.8
4.8
4.4
Quality of material
3.1
5.0
4.3
4.1
Value for money
4.6
4.0
4.2
4.3
Sold By
iT Hardware
Amazon.com
S&D Exchange
Amazon.com
Amazon.com
Amazon.com
power supply design
Full Modular
Full Modular
Full Modular
Full Modular
Full Modular
Full Modular
connector type
usb
PCI Express
ATX
atx,pcie
ATX, PCI Express
atx,pcie
form factor
ATX
EPS12V
ATX
ATX
cooling method
Air
Air
Air
Air
Air
system bus connector
8 Pin
16 Pin
16 Pin
fan count
1
1
1
1
1
1

From the manufacturer

AX1200i
80 PLUS Platinum, clean, stable power

Complete Digital Control

The revolutionary AX1200i is the first desktop PC power supply to use digital (DSP) control and CORSAIR iCUE to bring you an unprecedented level of monitoring and performance customization. The DSP in the AX1200i makes on-the-fly adjustments for incredibly tight voltage regulation.

AX1200i

Real-time monitoring and control with CORSAIR iCUE

Put the AX1200i under your control by connecting it directly to a USB header on your motherboard with the included cable, or to a CORSAIR Commander (available separately). Then, download the free CORSAIR iCUE Dashboard software for unrivaled power supply monitoring and control options.

AX1200i

Stable and reliable power delivery

DSP-controlled, real-time voltage regulation helps ensure that your valuable components receive clean, stable power.

AX1200i

Less heat and lower operating cost

AX1200i's extreme efficiency earns it coveted 80 PLUS Platinum certification. Less wasted power means minimal excess heat. This can reduce the strain on your other components, and it can save you money over the long run in the form of lower power bills.

AX1200i

Quiet operation at low loads

Super-high efficiency has another benefit: silence. The thermally-controlled fan doesn't even spin at low loads. It's ideal if you're building a quiet PC or you just want to reduce the amount of ambient noise in your life.

AX1200i

Easy installation and cable routing, with better airflow

The fully modular cable set allows you to use only the cables you need, and the flat design makes cable routing much easier in tight spaces. You get a clean-looking system build with cables out of the airflow path for efficient space usage that's energy efficient as well.

AX1200i

Intelligent Control. Unlimited Possibilities.

CORSAIR iCUE provides in-depth PSU voltage and performance monitoring, as well as stunning system-wide RGB lighting synchronization.

Product information

Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

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CORSAIR AXi Series, AX1200i, 1200 Watt, 80+ Platinum Certified, Fully Modular - Digital Power Supply


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Product Description

From the Manufacturer

The fully modular cabling system allows you to use only the cables you need.

The revolutionary AX1200i is the first desktop PC power supply to use digital (DSP) control and Corsair Link to bring you an unprecedented level of monitoring and performance customization. The DSP in the AX1200i makes on-the-fly adjustments for incredibly tight voltage regulation, 80 PLUS Platinum Efficiency, and clean, stable power.


Real-time monitoring and control with Corsair Link
Monitor and control your AX1200i with Corsair Link Dashboard (larger image)

Put the AX1200i under your control by connecting it directly to a USB header on your motherboard with the included cable, or to a Corsair Link Commander (available separately). Then, download the free Corsair Link Dashboard software for unrivaled power supply monitoring and control options.

Monitor power input and output, efficiency, fan speed, and internal temperature, directly from the Windows based application. Or, take it to the next level and set up and modify fan speed profiles, or even select from virtual “single rail” or “multi-rail” software modes, with selectable OCP points.

Stable and Reliable Power Delivery

DSP-controlled, real-time voltage regulation helps ensure that your valuable components receive clean, stable power.

Less Heat and Lower Operating Cost
(larger image) (larger image)

The extreme efficiency of the AX1200i earns it coveted 80 PLUS Platinum certification. Less wasted power means minimal excess heat. This can reduce the strain on your other components, and it can save you money over the long run in the form of lower power bills.

Quiet Operation at low loads

Super-high efficiency has another benefit: silence. The thermally-controlled fan doesn't even spin at low loads. It's ideal if you're building a quiet PC or you just want to reduce the amount of ambient noise in your life.

Features

Advanced Fan Design

An ultra-quiet, 140mm double ball-bearing fan delivers excellent airflow with exceptionally low noise levels by varying fan speed in response to temperature.

The AX1200i is so efficient that the fan doesn't spin up until you're pushing your system hard. And, fan speed thresholds can be adjusted with Corsair Link.

Are you used to checking to see if the fan spins to verify if your power supply is working? No worries. AX1200i has a self-test switch to verify proper functionality before you install.

Superior components and better engineering for excellent performance and protection
  • High-quality capacitors provide uncompromised performance and reliability.
  • Active Power Factor Correction (PFC) with PF value of 0.99
  • Over-voltage, under-voltage, over-current, and short circuit protection provide maximum safety for your critical system components
  • Engineered to meet maximum power output at a server-grade 50°C temperature rating.

AX1200i provides a dedicated single +12V rail, with configurable virtual "single-rail" and "multi-rail" software modes.

Package Contents



  • AX1200i power supply
  • Modular cable pack
  • Accessory bag with mounting hardware, cable ties, and case badge
  • Installation Guide
  • Corsair Link Digital interface cable
  • Corsair Link USB Dongle

Product guides and documents

Customer reviews

3.9 out of 5 stars
3.9 out of 5
711 global ratings

Customers say

Customers like the power, quality and noise of the system power device. They mention it provides more than enough power, is efficient and doesn't make a sound. They also like the cables, and ease of installation. That said, some complain about the stability. Opinions are mixed on performance, and value.

AI-generated from the text of customer reviews

189 customers mention153 positive36 negative

Customers like the power of the system power device. They mention that it provides more than enough power for anything they throw at it, it's efficient, and has some amount of future proofing. The power is rock solid and runs cool enough to not require fan even when driving. The PSU has met the 80 Plus Titanium efficiency requirements, which is a massive plus. Customers also mention that the power is very clean and stable, even under heat and load.

"...Still, no shortage of power here.My only problem is not directed at this PSU, but the option it provides. Specifically, the Corsair Link...." Read more

"...Full watt spec on 12V rail.High wattage for small form factor."i" series has unique data collection capabilities...." Read more

"Fully modular. Lots of power. Nice black cables. 5-Star packaging. What else could you ask for?..." Read more

"...for a user should keep up with the dips and rises while providing clean power...." Read more

138 customers mention111 positive27 negative

Customers like the quality of the system power device. They mention that it has a high quality build, heavy duty parts, and is well-instrumented. The cables are also well-made and durable. Overall, customers are impressed with the quality and reliability of the product.

"This PSU is undoubtably the best PSU for your PC. Efficiency level of at least 94% even at 100% load...." Read more

"...Pros:High quality build, heavy duty parts.Full watt spec on 12V rail.High wattage for small form factor...." Read more

"...Its consistent and reliable.Can support two Evga GeForce GTX 780 Titanium (3 GigaByte GDDR5 memory each) video controllers easily...." Read more

"...when it comes to their overall build quality and the quality of the parts they use...." Read more

97 customers mention77 positive20 negative

Customers like the noise level of the system power device. They mention that it is very quiet and handles overclocks well, is efficient, and does not make a sound.

"...34;i" series has unique data collection capabilities.Quiet, cool, and efficent operation. Zero fan speeds at low heat...." Read more

"...There is no discernible hum and has clean electromagnetic harmonics contributing to a quiet room...." Read more

"...So it is very quite. From the in-depth reviews I read the power is very clean and stable even under heat and load stress...." Read more

"...Do your homework! Runs super quiet in an overclocked system Build below:Case and CoreCooler Master Storm Stryker Tower..." Read more

59 customers mention46 positive13 negative

Customers like the cables of the system power device. They say they are plentiful, have the correct orientation to install at the bottom, and are modular. The included cables are standard length, but if you're using a large case, the length may be too short. Customers also appreciate the fact that the connectors are long, indicating that the PSU can deliver lots of power. The cables are of very high quality and long enough to be routed nicely. Overall, customers are satisfied with the cables and find the cable management to be easy.

"...It's also important to note that the connectors are long which indicates this PSU can easily support the current models of supertower PC cases...." Read more

"Fully modular. Lots of power. Nice black cables. 5-Star packaging. What else could you ask for?..." Read more

"...This IS a fully Modular Power Supply. No cable are attached at all. Many PSU's say they are modular but are NOT fully modular. Do your homework!..." Read more

"...The only real cons are this PSU still comes with those hard to manage FLAT cablesAnd the Biggest CON is the AX1600i is out...." Read more

33 customers mention27 positive6 negative

Customers find the installation process of the system power device to be easy. They mention that the cables are easy to route and tie, and the interface is easy to configure. The modular cables make it easy to connect to everything, and it works great. Customers also appreciate the modular format, which keeps cable clutter to a minimum. Overall, customers are satisfied with the ease of installation of the product.

"...was first 100% modular power supply and I absolutely loved how easy it was to install...." Read more

"...Simple to download, easy(below) to install...." Read more

"...my first DIY build because it was modular and therefore easy to snap in only the cables I needed, thereby simplifying the build plus making it look..." Read more

"...Corsair's RMA process was extremely easy and painless. I would highly recommend this product based on the customer service alone...." Read more

123 customers mention80 positive43 negative

Customers are mixed about the performance of the system power device. Some mention it performs great out of the box, while others say that it does not behave like the professional product it claims to be. Some customers also mention that the fan only kicks on sporadically when the system is running.

"...Quiet, cool, and efficent operation. Zero fan speeds at low heat.Cons:Expensive. Thats all I can think of...." Read more

"...Four days ago, the whining power supply (the third) failed entirely. This voided the machine's operation entirely...." Read more

"...No problems, Whatsoever. Go read reviews about this power supply...." Read more

"...n't recommend it at it's MSRP but it is very high quality, top notch performance...." Read more

48 customers mention27 positive21 negative

Customers are mixed about the value of the system power device. Some mention it's a great bang for the buck, and the most reliable and cost effective power supply on the market, while others say that it' s not worth the asking price, it''s overkill for a gaming computer with 1 or 2 GPUs, and is complete overkill in most builds.

"...If I can get 5 to 6 years out of this unit, it's money well spent." Read more

"...Zero fan speeds at low heat.Cons:Expensive. Thats all I can think of. Rarely goes on sale or has special deals...." Read more

"...This might be the most reliable and and cost effective power supply on the market!" Read more

"...Nutshell: this thing is worth the premium. Well, I mean, it's bloody expensive, but my last PSU lasted me ten years and may she rest in peace now..." Read more

78 customers mention6 positive72 negative

Customers are not satisfied with the stability of the system power device. They mention that it has sudden random shutdowns, and the computer completely powering down with the slightest vibration. Some customers also report that the power supply starts to power off and on randomly.

"...There is no consistency with the shut downs. It'll go for a week and then all of sudden shut down three times in one night...." Read more

"...it with the same uit, but I am VERY disppointed that it started to fail after 3 years...." Read more

"...This causes a black screen crash normally where the gpu kills the driver and your system has to be manually restarted...." Read more

"...For no reason and under no load at all, my system would simply shut down and then reboot to Windows...." Read more

Top of the line - costly, very high quality with bells and whistles.
5 Stars
Top of the line - costly, very high quality with bells and whistles.
I have had this power supply, AX860i, for nearly 5 years. It has never let me down. I have it powering a system with two overclocked R9 290s, an overclocked i7 4790k, a water pump,8 fans, 2ssds, wifi card and of course mobo. The "i" series allows for unique and fun data collection not supported by nearly any other line of models. I never stressed the unit to hard. I stress test up to 800 Watts only so I have headrom. I wouldnt be afraid to push spec with this unit if I could.Using the logging capabilities I plotted my unit's efficiency and included it here. You can see it matches their claim well. I attribute low wattage inefficencies to start up and shut down. Otherwise, my results match their spec's claim with 93% max efficency at 414 Watts.The fan stays completly off at low heat, which is great. When it turns on it is very quiet.Finally note that this power supply may be the largest wattage available in the smaller, "regular", form factor size. I cant fit the larger supplies with my radiator, so I luckily ended up with this power supply.Pros:High quality build, heavy duty parts.Full watt spec on 12V rail.High wattage for small form factor."i" series has unique data collection capabilities.Quiet, cool, and efficent operation. Zero fan speeds at low heat.Cons:Expensive. Thats all I can think of. Rarely goes on sale or has special deals.Edit - At this price point standard sleeved cables should be included.This is a very top line consumer power supply with extra cpabilities. If you can justify the cost, you will probably be very happy with the supply. I am.
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Top reviews from the United States

Reviewed in the United States on November 24, 2014
21 people found this helpful
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Reviewed in the United States on December 20, 2017
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5.0 out of 5 stars Top of the line - costly, very high quality with bells and whistles.
Reviewed in the United States on December 20, 2017
I have had this power supply, AX860i, for nearly 5 years. It has never let me down. I have it powering a system with two overclocked R9 290s, an overclocked i7 4790k, a water pump,8 fans, 2ssds, wifi card and of course mobo. The "i" series allows for unique and fun data collection not supported by nearly any other line of models. I never stressed the unit to hard. I stress test up to 800 Watts only so I have headrom. I wouldnt be afraid to push spec with this unit if I could.

Using the logging capabilities I plotted my unit's efficiency and included it here. You can see it matches their claim well. I attribute low wattage inefficencies to start up and shut down. Otherwise, my results match their spec's claim with 93% max efficency at 414 Watts.

The fan stays completly off at low heat, which is great. When it turns on it is very quiet.

Finally note that this power supply may be the largest wattage available in the smaller, "regular", form factor size. I cant fit the larger supplies with my radiator, so I luckily ended up with this power supply.

Pros:
High quality build, heavy duty parts.
Full watt spec on 12V rail.
High wattage for small form factor.
"i" series has unique data collection capabilities.
Quiet, cool, and efficent operation. Zero fan speeds at low heat.

Cons:
Expensive. Thats all I can think of. Rarely goes on sale or has special deals.
Edit - At this price point standard sleeved cables should be included.

This is a very top line consumer power supply with extra cpabilities. If you can justify the cost, you will probably be very happy with the supply. I am.
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Customer image
4 people found this helpful
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Reviewed in the United States on April 21, 2013
21 people found this helpful
Report

Top reviews from other countries

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Haza Cruz
5.0 out of 5 stars De lo mejor que he probado.
Reviewed in Mexico on June 21, 2019
Diego Muñoz
5.0 out of 5 stars Buena Fuente
Reviewed in Mexico on December 30, 2016
2 people found this helpful
Report
Pajeet Singh
5.0 out of 5 stars GEXOP
Reviewed in India on March 26, 2016
One person found this helpful
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Manish Prahladka
5.0 out of 5 stars Great PSU, best in class
Reviewed in India on May 16, 2014
One person found this helpful
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Irma Garay García
1.0 out of 5 stars PRODUCTO FALLANDO
Reviewed in Mexico on July 3, 2021