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CORSAIR CMPSU-400CX 400W ATX12V V2.2 80 PLUS Certified Compatible with Core i7 Power Supply - Retail

Voted Best Power Supply Manufacturer by Custom PC 2008(limit 5 per customer)  what's this?

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Original Price: $64.99
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$49.99

($39.99 after $10.00 Mail-In Rebate Card pdf )
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OverviewCustomer ReviewSpecificationsProduct Tour
The 400CX PSU from Corsair delivers premium features on a standard budget. This 400W PSU supports the latest ATX12V v2.2 standards. The unit is 80 Plus certified and has a 99% Active Power Factor Correction to ensure maximum efficiency.

The cables are extra long to work in the largest tower. They are fully sleeved for easy routing and bundling. There is a PCIe power connector so you can use one of today’s high powered video cards. There are also 6xSATA and 6xMolex connectors so you can connect multiple drives and peripherals.

Keeping it all cool is a variable speed 120mm fan. Air is vented through the hexagon mesh back panel. The universal input accepts voltages from 90-264 so you no longer have to worry if the switch was in the right position.

Review Summary (read more reviews, write a review)

5
newegg
82%
4
newegg
6%
3
newegg
4%
2
newegg
3%
1
newegg
5%
Product Rating:
Total Reviews: 310

Corsair 400W PSU

white Reviewed By: Sergei on 11/17/2008
Rating + 5
Tech Level Tech Level: somewhat high - Ownership: 1 day to 1 week
Pros: Unlike many other power supplies, this has a single 30 amp 12v Rail which eliminates any load balancing over different rails and will power a lot of components other PSUs (even with higher wattage ratings, Thermaltake 430W is a perfect example) will not. The efficiency, quality and price of Corsair PSUs is hard to beat. The heat and noise generated from this PSU is minimal due to high efficiency.
Cons: None.
Other Thoughts: This power supply carries a 3 year warranty. Just as a comparison, the other 7 PSUs Corsair carries come with a 5 year warranty. Also, after Corsair has revamped their website, the noise and efficiency charts that they had listed for power supplies were removed. I couldn't check the noise charts, but figured that it couldn't be any louder than a Corsair 450W that I purchased, and I was right. It's the quietest actively cooled part in the whole computer.
84 out of 87 people found this review helpful. Did you? Yes No

Corsair is the Way to GO

white Reviewed By: DrT3K on 10/28/2008
Rating + 5
Tech Level Tech Level: high - Ownership: 1 week to 1 month
This user purchased this item from Newegg
Pros: Go to newegg, click powersupplies, click Corsair, now you have a flawless power supply no matter what you click on.
Cons: Didn't come with the nice bag like all the others. ;)
Other Thoughts: I wish buying memory and motherboards was this easy.
26 out of 66 people found this review helpful. Did you? Yes No

Quick Specs (view all30)

ModelCMPSU-400CX
TypeATX12V
Maximum Power301 - 400W
Fans1
Main Connector20+4Pin

Review Summary (read all 310 Reviews, write a review)

5
newegg
82%
4
newegg
6%
3
newegg
4%
2
newegg
3%
1
newegg
5%
Product Rating:
Total Reviews: 310

Seriously?

white Reviewed By: crayzie418 on 11/18/2009
Rating + 5
Tech Level Tech Level: high - Ownership: 1 week to 1 month
Pros: This power supply performs very well. I have it paired with a i5, 4GB DDR3, 150GB Raptor, 1TB storage, HD5750, and it performs flawlessly. 80+ is exactly that, its super efficient and runs everything in this rig with no problems. I use this power supply in most of my customer's computers and I couldn't be more satisfied. Great build material too!
Cons: um...that its not modular? What more do you want from a fantastic 400w power supply? It's a great power supply
Other Thoughts: To the guy who complained about the 400w power supply he bought for a high-end rig...you really think running whatever Quad core you did not specify with a HD 5870 along with your other components were going to be sufficient? Please don't spend $800+ on high end products and expect a $40 400w power supply to run it all. Please don't just throw your money around..do your homework before you throw blame around...the only one to fault is yourself. CORSAIR is AWESOME!
Did you find this review helpful? Yes No

Look at the size of that thing!

white Reviewed By: SunriseMan on 11/17/2009
Rating + 4
Tech Level Tech Level: high - Ownership: 1 week to 1 month
This user purchased this item from Newegg
Pros: Single rail design means it can power things better than PSUs rated much higher. Has 8-pin EPS12V connector like most multicore motherboards want. Runs relatively quietly.
Cons: The cables are long. I don't mean "Oh, good, I have some slack for cable routing" long. I mean "Gee, what was I thinking putting this bad boy in a mid-tower case?" long. Don't even think about using this in a mini-tower case!
Other Thoughts: The box says it's "whisper quiet." Well, it's relatively quiet, but certainly louder than a whisper. It seems like it's marketed as a desktop product, but it'd really be more at home in a server.
Did you find this review helpful? Yes No

Watch the rebate timing

white Reviewed By: on 11/16/2009
Rating + 5
Tech Level Tech Level: somewhat high - Ownership: 1 month to 1 year
This user purchased this item from Newegg
Pros: Efficient 81-83% according to 80 PLUS
Good cable length (I can route the 8 pin CPU connector for good airflow - entirely around my motherboard - in my bottom PSU mount Antec 300 despite more than doubling the required cable length).
Very quiet.
Cons: Be careful of that rebate - I wanted to make sure everything was okay on my system before I sent it in (in case I needed to RMA anything). However, I waited too long 3 weeks from purchase was too late for the rebate - my other two rebates were still within the timeframe. Download/print the rebate when you purchase to make sure you can still access it, as some rebates only last a week, so by the time the item is delivered, its no longer available online.
Other Thoughts: Watch the pricing - Newegg likes to vary this one quite a bit the list price of ~65 is more than double what you can pay after a rebate.
Did you find this review helpful? Yes No
Model
Brand CORSAIR
Model CMPSU-400CX
Spec
Type ATX12V V2.2
Maximum Power 400W
Fans 120mm double ball-bearing fan
Main Connector 20+4Pin
+12V Rails Single
PCI-Express Connector 1 x 6-Pin
SATA Power Connector 6
Energy-Efficient 80 PLUS Certified
Output +3.3V@20A,+5V@20A,+12V@30A,-12V@0.8A,+5VSB@2.5A
MTBF >100,000 Hours
Features
Connectors 1 x Main connector (20+4Pin)
1 x 4-Pin/8-Pin EPS Connector
6 x Peripheral
6 x SATA
2 x Floppy
1 x PCI-E
Features High efficiency topology to ensure energy savings

99% Active Power Factor Correction provides clean and reliable
power to your system

Universal AC input 90~264V automatically scans and detects
the correct voltage. No more hassle of flipping that tiny red
switch

Dedicated single +12V rail offers maximum compatibility with
latest components

Over Current/Voltage/Power Protection, Under Voltage
Protection, and Short Circuit Protection provides maximum safety to critical system
Components

Extra long cables support full tower chassis

Compatible with Core i7

Introduction

The 400CX PSU from Corsair delivers premium features on a standard budget. This 400W PSU supports the latest ATX12V v2.2 standards. The unit is 80 Plus certified and has a 99% Active Power Factor Correction to ensure maximum efficiency.

The cables are extra long to work in the largest tower. They are fully sleeved for easy routing and bundling. There is a PCIe power connector so you can use one of today’s high powered video cards. There are also 6xSATA and 6xMolex connectors so you can connect multiple drives and peripherals.

Keeping it all cool is a variable speed 120mm fan. Air is vented through the hexagon mesh back panel. The universal input accepts voltages from 90-264 so you no longer have to worry if the switch was in the right position.

Highlights

newegg ATX12V v2.2 Compatible
Compatible with the ATX12V v2.2 standard, the Corsair CMPSU-400CX power supply provides maximum power stability to drive the latest Intel and AMD processors as well as other system components.
newegg 400W Maximum Power
A maximum power of 400W delivers safe, reliable output for high-performance gaming computer systems.
newegg 80 PLUSCertified
The 80 PLUS certified power supply provides high power efficiency of at least 80% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
newegg Efficient Cooling
A 120mm double ball-bearing fan delivers high efficient cooling and ensures quiet operation through fan speed adjustments in response to loading conditions.

Photo Gallery

CORSAIR CMPSU-400CX 400W Compatible with Core i7 Power Supply - Retail
CORSAIR CMPSU-400CX 400W Compatible with Core i7 Power Supply - Retail CORSAIR CMPSU-400CX 400W Compatible with Core i7 Power Supply - Retail CORSAIR CMPSU-400CX 400W Compatible with Core i7 Power Supply - Retail CORSAIR CMPSU-400CX 400W Compatible with Core i7 Power Supply - Retail CORSAIR CMPSU-400CX 400W Compatible with Core i7 Power Supply - Retail

Quick Specs

BrandCORSAIR
+12V RailsSingle
Energy-Efficient80 PLUS Certified
Fans1
TypeATX12V
Maximum Power301 - 400W
MTBF>100,000 Hours
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