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Corsair AX1200i 1200W Fully Modular ATX 80 PLUS Platinum Power Supply

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About this product


Product overview

• 1200W of continuous power provides you with an extreme amount of power for a vast majority of components and future upgrades
• ATX form factor allows you to connect the power supply to almost any motherboard and fits in most standard cases
• Fully modular design means you only use the cables you require for easy builds with the best airflow
• Produces 23dBA at full load for an almost silent computing experience
• 92% efficient with a 80 PLUS platinum rating, providing you with an immensely efficient power supply
• Manufacturer part number: CP-9020008-UK

Special features
• Corsair Link Advanced software lets you monitor AC input, DC output, temperature and fan speed
• Zero RPM fan mode for near silent computing under light loads thanks to the built-in thermal sensor

What can I run from this power supply?
This AX1200i can power high-end computer systems that are overclocked, running multiple graphics cards and with a plethora of components installed. The power supply uses digital signal processor (DSP) control and Corsair Link to provide you with an unprecedented amount of monitoring and performance customisation. The DSP makes on-the-fly adjustments for incredible right voltage regulation, power efficiency and clean, stable power. With such a large amount of power any future upgrades will be easy to implement – you’ll be able to add and upgrade to multiple amount of graphics cards (in SLI or CrossFire), RAM modules, hard drives, fans and other components.

How quiet and efficient is this power supply?
Carrying an 80 PLUS Platinum certification, this power supply can deliver up to 92% energy efficiency under real-world load conditions. Almost 8% of electrical energy pulled will be wasted as excess heat, which reduces operating costs in the long run. A 120mm double ball-bearing fan delivers excellent airflow at an almost silent noise level, with only 27dBA of noise produced at full load. Furthermore, through its zero RPM fan mode the fan doesn’t operate at low loads. The built-in thermal sensor varies the fan’s speed automatically, which makes it ideal for quiet PC builds or for keeping ambient noise to a minimum.

How does the fully modular design benefit me?
This power supply’s fully modular design gives you full flexibility, allowing you to only use the cables that are needed to power various components in your computer system. Through this extra flexibility you can move cables around to improve not only the aesthetic look of your case, but airflow too. To improve the airflow even further the cables have a flat design, making cable routing in tight spaces much easier. Being fully modular also means that you can easily swap this power supply for a similar fully modular power supply without having to re-do your cable management.

What can I do with Corsair Link Advanced?
Manage and control the AX1200i to your liking through the use of Corsair Link Advanced. To get started, you’ll need to connect directly to a USB header on your motherboard with the included cable and download the Corsair Link Dashboard software. Using this software, Windows users can monitor power input and output, efficiency, fan speed and internal temperatures. You can also set up and modify fan speed profiles, or even select from virtual "single rail" or "multi-rail" software modes, with selectable OCP points.


Brand Corsair
Model number AX1200i
Modular type Fully Modular
Form factor ATX
Localisation United Kingdom
Colour Black
Peak power output 1320 W
Sustained power output 1200 W
Operation temperature 50°C
MTBF 100,000 hours
Single or multi rail Single
Input voltage 100 to 240 VAC
Input current 7.5 A to 15 A
Input frequency range 50 to 60 Hz
Power factor correction (PFC) Active
Output +12V (A) 100.4 A
Over voltage protection Yes
Under voltage protection Yes
Over current protection Yes
Efficiency and standards
Efficiency 92%
80 PLUS certification Platinum
Safety certificates CE / ROHS
Compliant standards CB, TUV, FCC Class B, cUL, cTUVus, CCC, C-tick
Cooling system 1 x 140 mm fan
Noise <23 dBA
Number of connections
20+4 pin main connectors 1
4-pin 12V connectors 2
SATA connectors 16
4-pin Molex (peripheral) connectors 12
6-pin PCI-e connectors 8
Floppy drive connectors 2
Other 1 x Corsair Link (C-Link) Advanced port
Width 150 mm
Depth 200 mm
Height 86 mm
Weight 4000 g
Manufacturer warranty 7 years
Package contents
AX1200i power supply
Power cord
Modular cable pack
Accessory bag with mounting hardware, cable ties, and case badge
Corsair Link Digital interface cable
Corsair Link USB Dongle
Installation Guide