2014 Electronics Holiday Gift Guide
6 used & new from $145.00

Have one to sell? Sell on Amazon

Image Unavailable

Image not available for
Color:
  • Corsair Professional Series  AX 1200 Watt ATX/EPS Modular 80 PLUS Gold (AX1200)
  • Sorry, this item is not available in
  • Image not available
  • To view this video download Flash Player
      

Corsair Professional Series  AX 1200 Watt ATX/EPS Modular 80 PLUS Gold (AX1200)

by Corsair

Available from these sellers.
1200-Watt
  • 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions.
  • A Seven year warranty and lifetime access to Corsair?s legendary technical support and customer service.
  • High-quality Japanese capacitors provide uncompromised performance and reliability.
  • An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature.
  • A Seven year warranty and lifetime access to Corsair's legendary technical support and customer service.
3 new from $428.59 3 used from $145.00

PSU Selection in Four Simple Steps
Need help picking a power supply unit? Corsair's PSU finder will guide you through requirements and compatibility issues, ensuring that you make the right choice for your system. [PDF]


Special Offers and Product Promotions

Size: 1200-Watt
  • Buy Used and Save: Buy a Used "Corsair Professional Series  AX 1200 Watt ATX/EPS ..." and save 49% off the $288.88 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Technical Details

Size: 1200-Watt
  • Brand Name: Corsair
  • Model: CMPSU-1200AX

Product Details

Size: 1200-Watt
  • Product Dimensions: 10 x 6 x 4 inches ; 1.3 ounces
  • Shipping Weight: 9.8 pounds
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B003PJ6QVU
  • Item model number: CMPSU-1200AX
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (315 customer reviews)
  • Date first available at Amazon.com: June 4, 2010

Product Description

Size: 1200-Watt

Product Description

The Corsair AX1200 provides the power level, reliability and stability required for the ultimate SLI and CrossFire gaming PCs. It delivers more than 90% energy-efficiency and is built to the highest quality standards with one aim alone - to deliver the precise features and performance that enthusiasts demand.

Unprecedented Power Protection
The Corsair Professional Series Gold power supply pushes the state of the art for reliable delivery of clean power under imperfect conditions. If you require mission-critical stability or you simply want one of the best power supplies available, the Professional Series Gold is for you.

A Fully Modular Cabling System
All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it's time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling - the cables stay in place and connect to your new fully-modular Corsair power supply.

Incredible Efficiency
With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month. It's earned the 80 Plus Gold seal of approval, your guarantee that you're making the right choice for smart, efficient power delivery.

From the Manufacturer

The Corsair AX1200 provides the power level, reliability, and stability required for the ultimate SLI and CrossFire gaming PCs. It delivers more than 90% energy-efficiency, and is built to Corsair's renowned quality standards with one aim alone — to deliver the precise features and performance that enthusiasts demand.

Product Features

  • Supports the latest ATX12V v2.31 and EPS 2.92 standards and is backward compatible with ATX12V 2.2 and ATX12V 2.01 systems
  • An ultra-quiet 120mm double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature
  • 80 PLUS Gold certified to deliver at least 90% efficiency at 50% load
  • Active Power Factor Correction (PFC) with PF value of 0.99
  • A dedicated single +12V rail offers maximum compatibility with the latest components
  • Over-voltage and over-current protection, under-voltage protection, and short circuit protection provide maximum safety to your critical system components
  • High-quality Japanese capacitors provide uncompromised performance and reliability
  • Completely modular cable system allows you to use only the cables you need
  • Low-profile, flat cable design reduces air friction and helps maximize airflow through your computer's chassis
  • Safety Approvals: UL, CUL, CE, CB, FCC Class B, TÜV, CCC, C-tick
  • What the Experts are Saying...
    Award 1

    "Corsair is well known for producing some of the best PC power supplies on the market today and the AX1200 continues that trend. The Corsair Professional Series Gold AX1200 power supply delivers clean DC outputs, with excellent efficiency and good voltage regulation. The AX1200 comes with an excellent assortment of all-modular cables that can support the latest CPUs and multiple, high-end video cards. And let's not forget active PFC, universal AC input and Corsair's 7-year warranty!" - PCPerspective July 26, 2010

    Award 2

    "There is a whole lot to like about the new Corsair AX1200, and very little indeed to hate. Lots of power, lots of connectors, and all of those connectors come off if you want them to. And we can't forget about the efficiency, which just about outclasses everything else I've ever tested. Do you need any other reason to buy one?" - JonnyGuru June 5, 2010

    Award 3

    "A near flawless product from Corsair which continues to enhance their reputation for producing the industry's best PSUs." - HardwareHeaven August 4, 2010

    Corsair Professional Series - Specifications

    Specifications AX750 AX850 AX1200
    Wattage Output 750 850 1204
    Efficiency 80+ Gold 80+ Gold 80+ Gold
    Hybrid Silent Fan Control Yes Yes No
    +12V Rating 62 Amps 70 Amps 100.4 Amps
    Continuous Power Output 750 Watts @ 50°C 850 Watts @ 50°C 1204 Watts @ 50°C
    Warranty 7 Years 7 Years 7 Years
    Size 150mm(W) x 86mm(H) x 160mm(L) 150mm(W) x 86mm(H) x 160mm(L) 150mm(W) x 86mm(H) x 200mm(L)
    Power Supply Image
    Corsair AX750 PSU
    Corsair AX850 PSU
    Corsair AX1200 PSU
    More Information
    Click Here
    Click Here
    Click Here

    Efficiency
    AX1200 Efficiency
    Fan Noise
    AX1200 Noise

    Why choose a Corsair Professional Series AX power supply?

    Incredible Efficiency
    Incredible Efficiency

    With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month. It's earned the 80 PLUS® Gold seal of approval, your guarantee that you're making the right choice for smart, efficient power delivery.

    Fully Modular Cabling
    Fully Modular Cabling System

    All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it's time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling — the cables stay in place and connect to your new fully-modular Corsair power supply.

    7 Year Warranty
    7 Year Warranty

    Corsair strives to ensure the quality and reliability of our power supplies, which is why the Corsair Professional Series Gold power supplies are provided with a seven year limited warranty. They are also backed by Corsair's legendary customer service and technical support.

    Connectors and Cable Length

    Connector Type Quantity Length (mm) Length (inches) Connectors per cable
    ATX Power Cable 1 610mm 24" 1
    EPS/ATX12V CPU Cable 2 610mm 24" 1
    PCI-E Cable (6+2 pin) 6 610mm 24" 1
    SATA Cable 3 850mm 33.46" 4
    SATA Cable 2 600mm 23.62" 2
    Peripheral Cable 3 850mm 33.46" 4
    Floppy Adapter 2 100mm 4" 1

    Customer Reviews

    Overall - a very highly recommended PSU for high end builds that need a lot of power!
    Amazon Customer
    The fully modular design allows me to use only cables that i need in my build, therefore keeping the inside of the case nice and clean for great air-flows.
    Mike
    I really like this PSU and will outlast my system and move on to many more, better things!
    BellTollsForThee

    Most Helpful Customer Reviews

    44 of 47 people found the following review helpful By Reviewer Amazon on November 20, 2010
    Size Name: 1200-Watt
    I have now been using this for about a week and am very impressed. I upgraded from an Enermax Revolution 85+ 1050 Watt Power Supply which was a critically acclaimed unit itself. I love the fact that this power supply is FULLY modular. Whenever you have to replace it you can just undo all the cables from the PSU and leave the cables intact in your case. You then can remove the power supply easily and install the replacement (which of course would be a Corsair too)! Remember, the hardest part about installing or replacing a power supply is organizing the cables in your case. This is very time consuming.

    The power supply runs very cool, but I am only using about 25% of its power capacity right now. Unlike other reviewers who base their reviews on performance subjectively, I did test the power supply before I installed using a Coolmax power supply tester. Everything was tight!

    While there are other power supplies out there that compete with this (like the newly released Antec HCP 1200 Unit, I chose the Corsair because they have always been about Quality and Performance for the enthusiast from their memory only days. This unit also comes with a 7 year warranty versus 5 for the Antec and other competeing units.

    You can also get hold of Corsair by phone if you need to! They do not hide their phone number like other vendors all over the web.

    While this power supply is probably overkill for most, if you are a Computer Enthusiast, Overclocker, and/or Multi-GPU Gamer, this is YOUR POWER SUPPLY. Well done Corsair! Superb...........
    2 Comments Was this review helpful to you? Yes No Sending feedback...
    Thank you for your feedback. If this review is inappropriate, please let us know.
    Sorry, we failed to record your vote. Please try again
    19 of 19 people found the following review helpful By Andy on December 16, 2010
    Size Name: 850-Watt Verified Purchase
    This is probably one of the best psu's on the market. The efficiency sets new standards, it's extremely quiet (silent most of the time) and is good value for money.

    Highly recommended for those who need the wattage, or anyone who wants a highly efficient clean power source at any wattage. The fan doesn't even move when using normal email, desktop or web browsing apps. When it does slowly kick in during gaming you won't even notice the sound as the other fans (GPU, CPU etc.) produce more sound.

    The modular cabling makes for easy installation. It's size is well within ATX standards so it should fit in most desktop cases.
    Comment Was this review helpful to you? Yes No Sending feedback...
    Thank you for your feedback. If this review is inappropriate, please let us know.
    Sorry, we failed to record your vote. Please try again
    16 of 16 people found the following review helpful By Brock Tice on May 31, 2011
    Size Name: 1200-Watt Verified Purchase
    This is a great power supply. I'm abusing it with bitcoin mining 24/7. They throw in a lot of fancy stuff, velvet bag, etc, but cheap out on the 12V sockets on the ATX connector. They're only rated for 6A or so and it's easy to pull more than that.

    What this means is that if you put in 3 PCI-e video cards that each draw 75W (through the socket) you will burn the plastic off the ATX connector around those sockets, and then your computer will randomly shut off. I called Corsair to discuss this and they at least said they'd look into it.

    If you want to fix it yourself it's not too hard with less than $20 worth of parts from DigiKey. Feel free to comment/contact me if you want the part numbers. It's a a lot cheaper/easier to fix it before you burn the plastic off. (I also have pictures, if you want to see them, I don't think I can link them here. Look up my blog if you want to see.)

    I'm still giving it five stars because I know this is really an edge case, but I think it's going to be more common soon. I'll also note I had this happen with a 1kW CoolerMaster PSU. Basically all consumer PSUs use cheap sockets there instead of Molex HCS sockets. Just to give you some idea how silly this is, those sockets cost ~0.50 each (needed: 2) when buying in single-item quantities. It drops to just a few cents apiece when buying in bulk (as Corsair would). How much does a velvet bag cost?
    2 Comments Was this review helpful to you? Yes No Sending feedback...
    Thank you for your feedback. If this review is inappropriate, please let us know.
    Sorry, we failed to record your vote. Please try again
    23 of 25 people found the following review helpful By Timothy M. Richmond on September 27, 2010
    Size Name: 1200-Watt Verified Purchase
    Wow, this power supply is great. It has all modular cables, no guess work on where to plug them in since it is all on one rail, is totally silent, and looks good in a typical black mid-tower case. I haven't heard a peep and I have been able to overclock my Intel i7 processor about 550 mhz and both of my GTX480 video cards with no noticeable noise and no, zero, nada freezes or reboots. So therefore I recommend this as a worry free power supply to buy.
    Comment Was this review helpful to you? Yes No Sending feedback...
    Thank you for your feedback. If this review is inappropriate, please let us know.
    Sorry, we failed to record your vote. Please try again
    13 of 13 people found the following review helpful By P. Ranalli on September 17, 2012
    Size Name: 750-Watt Verified Purchase
    Allow me to begin this review by addressing a very common error that beginners make when building computers: going cheap on the power supply. Do not go cheap on your power supply! Power supplies are often taken for granted, but the fact of the matter is that a poor power supply can cause all sorts of problems from sluggish performance to crashes to actual hardware damage. Remember this: your power supply does exactly what it says, it supplies power to your entire system. Do not take that for granted, and please do not skimp on the purchase of your PSU.

    Now, that said, do you need a power supply of this level? Not necessarily. There are many great options at lower costs that will meet the needs of your typical user. What you want are highly rated, reputable power supplies. On the lower end, you may consider something like the Antec Earthwatts series, which are rock-solid for the money.

    But you're not reading this review because you want an Earthwatts; you are reading it because you're wondering, is it worth dishing out the cash on a Gold certified, modular PSU that comes packaged like it is a 200 year old bottle of scotch? The answer is yes, with one caveat: if you are trying to just put a computer together as cheaply as possible, then this PSU is not for you. As I stated earlier, there are reputable PSUs that you can find for much less.

    So, with that out of the way, let's talk about this particular PSU and why it is worth the money if you demand nothing but the best and have the budget for it. This PSU will deliver one of *the* most consistent levels of power to your system that is available today. It will live up to all of its ratings, unlike many cheaper PSUs which often turn out to supply far less consistent power than they claim.
    Read more ›
    2 Comments Was this review helpful to you? Yes No Sending feedback...
    Thank you for your feedback. If this review is inappropriate, please let us know.
    Sorry, we failed to record your vote. Please try again

    Want to discover more products? You may find many from corsair power supply full modular shopping list.