Corsair AX1200i 1200W Modular Power Supply

1200W Corsair Digital AX1200i, Full Modular, 80 PLUS Platinum, 1x140mm, ATX, PSU

Corsair
Scan code: LN46308 Manufacturer code: CP-9020008-UK Request call
£311.99
In stock
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review 3xs Approved High End
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Frequently Bought Together
Product Overview Digitally Controlled Power
The fully modular Corsair AX1200i uses a Digital Signal Processor (DSP) for tighter voltage regulation, which improves overall system stability, and increases performance to 80 PLUS® Platinum levels. Built-in Corsair Link™ gives you unprecedented monitoring and control.

Quiet, Efficient Operation
Upgrading to digital provides increased efficiency. The AX1200i is certified 80 PLUS® Platinum, which results in lower heat generation and a quieter fan profile. The AX1200i is so efficient that the 140mm fan doesn’t even spin at low loads for completely noiseless power delivery.

CORSAIR LINK™
The built-in Corsair Link™ functionality allows you to know how well your AX1200i is working at any given moment and lets you quickly tweak its performance. Server-inspired diagnostic tools monitor real-time efficiency, power usage, configurable over-current protection points and fan profiles
Features • Compatible with 4th generation Intel® Core™ series processors
• 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 PLUSR Platinum Efficiency for lower power usage and energy costs.
• Fanless operation at low loads, for outstanding noise reduiction.
• 140mm thermally controlled double-ball bearing fan spins up as needed.
• Fully Modular low profile cables for easy installation and less clutter.
• Engineered to meet maximum power output at a server-grade 50C temperature rating.
• Self-test switch to determine PSU functionality even before installation.

Box Contents:
Corsair AX1200i Digital ATX Power Supply with protective bag
Corsair AX1200i Modular Cable Kit with re-usable cable pouch
Corsair Case Badge, Zip Ties, and Mounting Screws
Corsair Link. USB Dongle
Corsair Link. Digital interface cable
Corsair AX1200i User Manual
Specifications
Specifications
Size ATX
Edition  
Wattage 1200 W
80 PLUS Certification 80 PLUS Platinum
Max. Efficiency 92 %
Cooling Fan
Fans 1 x 140mm
Internal +12V Rails Single Rail
Rail 1 +12V 100.4 A
Rail 2 +12V N/A
Rail 3 +12V N/A
Rail 4 +12V N/A
Rail 5 +12V N/A
Rail 6 +12V N/A
Max. Combined Output +12V 100.4 A
Modular Yes
Modularity Full Modular
SLI/CrossFire Yes
EPS 12V Yes
Motherboard Connector 20+4 Pin
Connectors
  • 2 x 4+4pin CPU +12V
  • 12 x 4pin Molex
  • 6 x 6+2pin PCI-E Power
  • 2 x FDD Power
  • 16 x SATA Power
Dimensions 150 x 86 x 200 mm (WxHxD)
Warranty

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Details
Duration:
120 months
Type:
Return to base
RTB Period:
120 months
Manufacturer Contact Details
Manufacturer:
Scan
Telephone:
0871 472 4747
Reviews
Rated 4.6 out of 5 by 5 reviewers.
Rated 3 out of 5 by A bit underpowered and a real shame about the cables! 5-7 years ago premium PSUs came with good quality cables as standard (remember the Enermax Galaxy?). The individual cables were properly colour coded, used large numbers of small diameter conductors and thin high grade insulation to ensure high flexibility and were properly protected with nylon or textile braid. Then the manufacturers started to use all black cables with thick, cheap insulation leading to very poor flexibility and, as a final insult, eventually joined them all together to form a ribbon cable! I have been purchasing Corsair PSUs since they first appeared on the market place and have used them in over 100 high-end PC builds. However, their standard cables have become increasingly cheap looking, bulky and inflexible to the point where clients, family and friends always insist on aftermarket replacements for their builds. This would be more bearable if their prices were still keen, but the cost of a 1000W PSU has almost doubled in the past 5 years without any major improvements in the quality of other components (I am an Electronics Engineer by trade and I am not impressed by the marketing hype which now permeates this market). I used to run AX1200is in both my main water-cooled PCs, but had to replace the first one when I upgraded to a triple Titan set-up as the 12V rail(s) became unstable past 1088W (Output). I had an almost identical problem when I upgraded to two high end AMD GCs in the other PC when I reached 1104W. Thankfully, the previously purchased Corsair premium AXi cable sets also fitted the 1500AXis. Unfortunately, I needed 2 cable sets per PSU as they lacked sufficient peripheral 4 pin molex leads. Ironically, the manufacturer’s ‘push’ to get enthusiasts to buy better quality aftermarket cables and their availability allowed me to solve this issue quickly and cleanly without having to build my own custom cables. However, a few spare interchangeable (for SATA) 4 pin Molex cables should really be provided as standard given the likely use for any PSU greater than 1000W, especially as many high end systems will be fitted with banks of HD carriers which often use peripheral connectors for power (not forgetting Water-pumps, Fan controllers, RGB LED Controllers, CCL Inverters, Flow Rate Displays, Sound Cards, etc). In fact, I only use one SATA PSU connection (Blu-ray drive) in each of my 6 household PCs, despite them all having 6 -15 HDs. In summary, given the issues I have had with these units when pushed close to their upper limit, I would recommend that serious enthusiasts go straight for the 1500W model and bypass this unit completely. If you are certain that you only need 1200W, I can thoroughly recommend the Seasonic X1250W which served as a stop gap measure in one of the PCs previously mentioned until the AX1500i was available. 23 January 2016
Rated 5 out of 5 by Flawless I could sum this PSU up with one word. Flawless. Scarily efficient! Quiet, cool running and endlessly tweakable profiles. Funning two fairly hungry GPU's (XFX Radeon R9 290x Black ed.) and still only pulling around 600w at full load! Oh and as an added bonus it looks pretty nice too ;) 26 June 2015
Rated 5 out of 5 by What do you expect Corsair never fail to deliver high quality components. The packaging itself is very high end. Easy instuctions, all power cables are braided and in black, which adds to the overall tidyness of the install. For those with old Gen MOBO's ( Asus P5Q-E ect...) be warned that the interface connection might not function as designed but an old LGA 775 board should be replaced soonish before all support and upgrades are obsolete or just insanely expensive ( yes crucial that was aimed at you!!!). Buy this and never buy a PSU again. 02 June 2014
Rated 5 out of 5 by Definitive Power Supply. Very expensive but worth it, it scales excellently, haven't seen it drop below 99% on my low end rig, I bought this as I plan to progressively upgrade and 1200W is more than enough for even the most intensive set ups. Even on full load I don't draw enough power from this to start the fan, recommend to anyone that has or plans to have a high end rig with quietness in mind, the only thing is the price. 02 May 2014
Rated 5 out of 5 by Pricey, but worth every penny! Amazingly this is my first ever modular PSU, so although this is a bit of an expensive one, the reviews i've read make it clear that it is a top PSU. I was not disappointed. Build quality is excellent, definitely the best i've seen in any PSU I've had before (including the likes of Enermax, Coolermaster and previous Corsair units#. Device connectivity is second-to-none, with plenty of each connectors readily available to you, including no less than 16 SATA connectors! No danger of running out of storage options, even with a high-end X79 board you're likely to run out of SATA ports long before you run out of SATA power connectors! Amps are extremely good right across the board, with just over 100 amps on the +12v rail, so this PSU could run tri-SLI GTX 780's effortlessly... and probably tri-SLI GTX 780 Ti's #i'm "only" using dual-SLI GTX 780's). Yes it is expensive for a power supply, but if ever there is a PC component you do not dare cut corners with, it's the PSU. The quality of this unit is plain to see, it's well worth the extra you pay for it. 12 November 2013
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Questions & Answers
Corsair AX1200i 1200W Modular Power Supply
Corsair AX1200i 1200W Modular Power Supply