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Enermax > 
Item#: N82E16817194002

ENERMAX Liberty ELT400AWT 400W ATX12V SLI Ready CrossFire Ready Modular Active PFC Power Supply

  • ATX12V
  • Modular
  • 100 - 240 V 50/60 Hz
  • +3.3V@26A, +5V@28A, +12V1@20A, +12V2@20A, -12V@0.6A, +5VSB@3A
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Set your power hungry system free with Enermax’s Liberty 400W PSU. This modular PSU is designed to deliver maximum power with minimum heat. Instead of a small fan on the back of the unit there is a 120mm fan on the bottom and the back panel is a minimally restrictive hexagonal mesh interrupted only by the power connector and switch.

The modular design makes cable management easier. The main power cables are permanently attached while all of the peripheral cables all plug into the back of the PSU. To make installation easier the PCIe cables are color coded. The cables are all wrapped in mesh for a cleaner installation. Extra cables can be stored in the provided bag until they are needed.

  • newegg ATX12V v2.2 Compatible Compatible with the ATX12V v2.2 standard, the Enermax Liberty ELT400AWT 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 average gaming computer systems.
  • newegg Highly Efficient Delivering up to 80% efficiency, the Enermax Liberty ELT400AWT power supply saves energy and may even reduce your electric bill!
  • newegg Dual PCI-E Connectors With two 6-pin PCI-E power connectors, the Enermax Liberty ELT400AWT is ideal for building up a SLI or CrossFire gaming system.
  • newegg Efficient Cooling The large 120mm silent fan with intelligent speed control increases overall airflow in the power supply enclosure and helps remove heat from the chassis simultaneously.
  • newegg Modular Cable Design The modular cable design allows use of only the cables you need resulting in improved internal airflow and reduced system clutter.

Learn more about the Enermax ELT400AWT




Maximum Power
Main Connector
+12V Rails
PCI-Express Connector
2 x 6-Pin
SLI Ready
CrossFire Ready
Hold-up Time
17ms at 115VAC or 230VAC, full load
Over Voltage Protection
+5V: 5.5V~7.0V; +3.3V:3.76V~4.3V; +12V & +12V2: 13.4V~15.6V
Overload Protection
110~160% of max load
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Input Current
6 - 2.5A
+3.3V@26A, +5V@28A, +12V1@20A, +12V2@20A, -12V@0.6A, +5VSB@3A
Greater than 100K hours at 70% of full rated load


ATX12V Ver 2.2
Silent 120mm fan
Modular Cables
Eternity Connectors
PCI Express x 2
Maximum Shielding

Manufacturer Warranty

3 years limited

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 0 day

Customer Reviews of the Enermax ELT400AWT

Do you own this product? Write a Review

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  • matthew h.
  • 6/3/2014 10:26:04 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

5 out of 5 eggsStrong, stable, and quiet since 2006

Pros: Duel 20 amp 12v rails.
Nice cables.
Looks nice.
Easy to clean.

Cons: it gives 600W PSU envy

Other Thoughts: Right now powering Xeon X5460 at 3.8ghz on a DFI P35T2RS, an R9 270X, and several large hard drives in an Antec 900 case with all fans going. 100% stable as always. I don't miss my 3770K/gtx780 either. This single individual 400W unit in multiple builds, over the years, since it was my main rig in 2006. It's been a reliable backup/extra since 2007 when I moved to the more powerful GPU lineups and have relied on an Enermax EIN720W for the more high end. That one is still kicking strong too.

Did you find this review helpful? Yes No

  • Mykola G.
  • 12/27/2009 6:33:52 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggslasted a couple of years

Pros: Modular. Worked for the first two years.

Cons: Third Enermax PSU dying on me.

Did you find this review helpful? Yes No

  • Max S.
  • 8/12/2008 11:09:34 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

Pros: I've owned 3 Enermax power supplies and they have worked well. They are relatively quiet. The modular cables are convenient and work well.

Cons: This power supply stopped working after about 1.5 years running 24/7 in a tower server. I RMAed it and got back a new one after about 1 week. I wasn't happy about the broken power supply, but had am happy that the support was great.

1 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 7/15/2008 7:15:04 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsUnstable

Pros: None, unless you consider modular cabling a pro. I am done with modular PSUs (this was the third modular in a row--all different brands--that had issues).

Cons: Had serious stability issues with this power supply when I tried to run the system with more than one hard drive. Constant BSOD with Windows, silent data corruption with Linux (I'll take BSOD over that any day). Problems went away with a different power supply (after a month of trial and error swapping out different components; I never dreamed a "quality" brand of power supply would cause that).

Other Thoughts: Relegated this unit to a computer with one hard drive. Seemed better than tossing it or trying to replace it.

Manufacturer Response:

Dear Valued Customer,

Please contact our technical support between 9:00AM~4:30PM Pacific Standard Time. All Enermax power supplies have three years warranty. We think there might be some compatibility problems and we are more than happy to solve this problem for you. Please call toll free at 888-778-7878 ext. 108. Thank you & sorry for the inconvenience that may have caused you.

Jay Y.
Team Enermax USA

2 out of 2 people found this review helpful. Did you? Yes No

  • Ricardo S.
  • 7/8/2008 2:32:17 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAwsome PSU

Pros: Fast shipping. Excellent packaging. Works great right out of the box. Modular cables are a MUST but not needed. Looks good in black too. It's also really quiet.

Cons: None.

0 out of 2 people found this review helpful. Did you? Yes No

  • Joseph C.
  • 6/25/2008 10:02:41 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAwesome

Pros: Great PS. No issues. Fits perfectly in my mATX case, holds voltages perfectly. I like the external

Cons: None

Other Thoughts: I do wish they would include a couple more connectors, perhaps shorter ones to enable an even cleaner build. No matter, still a 5 egg product.

1 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 6/18/2008 4:45:16 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsPowers alot for 400W

Pros: Powers on, and is silent as can be.

Cons: I would have liked to see the molex connectors and the SATA connectors on separate cords but this a design issue.

Other Thoughts: When looking through the reviews on newegg I noticed that nobody had tested this PSU with an 8800GT. I was afraid the 400W could not power my system, but I was wrong. The PSU powers much more than that.

My system: Enermax Liberty 400W PSU, Adata 2GB DDR 400, BFG OC2 8800GT, EVGA nforce 4SLI motherboard, 320GB Western Digital HD, 80GB Samsung HD, X-fi Creative Sound Card.

1 out of 1 people found this review helpful. Did you? Yes No

  • michael n.
  • 6/11/2008 8:51:32 AM
  • Tech Level: High
  • Ownership: less than 1 day

1 out of 5 eggsBad Customer service

Pros: good looks

Cons: Beauty is only skin deep. Good luck obtaining RMA in the event that you have a problem. they only responded to me via email if the info is complete and nothing by the fax... and the fax # is busy 99.99 percent of the time.

Manufacturer Response:

Dear User,

I see you posting two bad reviews for both of our Liberty 400W and 500W, and I just want you to know that we take pride in our service and we are eager to find out what the problem is.

Please contact our service manager Tom Lac:
tel: 1-888-778-7878 ext 108
fax: 626-913-9988

You can also reach me at:
Jay Zheng
extension 101

--Jay @ Enermax USA

1 out of 3 people found this review helpful. Did you? Yes No

  • Anonymous
  • 6/8/2008 11:38:03 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

5 out of 5 eggsElegant and Efficient

Pros: Modular cabling, quiet even with its large fan, reliable, and it has a sleek finish. It also comes with a nice carry bag for extra cables.

Cons: None, if you're running a normal system (1 graphics card), it will get the job done. Probably would do two cards, but I haven't tried it.

Other Thoughts: You'll wince at the fact that this thing is going to be INSIDE your computer. It's just cool looking. Comes with enough cables to hook up to six IDE/SATA devices and two PCIe. As I said, definite recommend for any regular home office computer.

0 out of 1 people found this review helpful. Did you? Yes No

  • Mike S.
  • 6/2/2008 4:35:42 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsNice little PSU

Pros: I bought this to replace the PSU in my Dell Inspiron 530 so I could use a nicer video card. I went with this one because it's not oversized like another PSU I tried and the modular cabling makes it's really easy to keep the insides of the cramped case clean. While some people didn't like the "eternity" cables they worked well for me because I only need one set for my DVD, hard drive and extra fans.

Cons: The PSU makes a lovely ZAP/static noise when powered on from a cold start. This worried me until I looked on the Enermax support faq. Apparently this is normal as the PFC turns off instead of going into standby (uses less power when off!) When it powers back up it makes a noise.

Other Thoughts: The bag for the cables is cool, but I suspect it will end up buried somewhere in my parts pile.

2 out of 2 people found this review helpful. Did you? Yes No

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Item#: N82E16817194002
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