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Apex ALLIED 400W ATX Power Supply ( AL-A400ATX )

4.0 out of 5 stars 14 customer reviews

List Price: $41.31
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  • Model - AL-A400ATX/SL-8400BTX
  • Form Factor ATX
  • Fan Features Auto Fan Speed Control
  • MTBF 50,000 hours on maximum load at +40° C degree
  • Output Power 400 W
  • Warranty 2 Years
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Technical Details

  • Brand Name: Apex Computer Techno
  • Model Number: AL-A400ATX
  • Item Height: 3.3 inches
  • Item Length: 6 inches
  • Item Width: 5.5 inches
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Product Description

Key Features Form Factor ATX Fan Features Auto Fan Speed Control MTBF 50,000 hours on maximum load at +40° C degree Output Power 400 W Warranty 2 Years Dimensions WxDxH 5.5" x 6.0" x 3.3" Detail Specifications - Proprietary IC & unique design - Embeded thermal sensor - Dual low-noise variable fan - Various safety protection--OCP,OVP,SCP,UVP, OPP - 20+4-pin MB connector - Peripheral power connector x 6 - Serial ATA connector x 1 - Floppy power connector x 1 Model - AL-A400ATX PSU - ATX12V Dimension - 5.5" x 6.0" x 3.3" Cooling - 2 x 80mm Ball Bearing Fan MTBF - 50,000 Hours Approval - UL, CSA, FCC

Product Information

Product Dimensions 6 x 5.5 x 3.3 inches
Item Weight 3.5 pounds
Shipping Weight 3.8 pounds (View shipping rates and policies)
ASIN B00008ZPNA
Item model number AL-A400ATX
Customer Reviews
4.0 out of 5 stars 14 customer reviews

4.0 out of 5 stars
Best Sellers Rank #775 in Electronics > Computers & Accessories > Computer Components > Power Supplies
Date first available at Amazon.com July 7, 2004

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Reviews

Top Customer Reviews

Verified Purchase
I was pleased when the package from Amazon showed up this afternoon. I used this unit to replace a non-working power supply in a 6-year-old Dell Dimension 4700. If you know your way around the inside of a computer, installing this unit isn't too big of a hassle. Unfortunately, my computer was designed to be more compact than accessible, so I had to take a few extra components out before I could install the power supply. Even so, it only took about 15 minutes of tinkering to get the unit installed.

I gave this product 4 stars because it works as intended, but it is louder than the original power supply that came with my computer. It's not a major issue, and for the most part it's not so loud to be completely distracting. The noise comes from the dual fans inside the unit, and there seem to be variable fan speeds depending on the amount of power being used by the computer (if more power is being used, the fans spin faster, creating more noise). When I first installed the power supply, the fans were loud enough that I considered exchanging the unit for another similar product, but they quieted down quickly enough. I assume the psu pulls its max power (400w) at start up to ensure everything gets going, then pulls back to the lowest amount it can use. I don't use my PC for gaming or intense graphics work, so I doubt that I'll be pushing this power supply to the limits. If I did use it for those purposes, I wouldn't be using a 400w power supply.

In all, I am satisfied with this Apex power supply thus far. I'm not expecting miracles, but it would be nice to see it outlast the rest of my 6-year-old PC!

Side note: I didn't have any video signal after I installed this psu.
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Verified Purchase
The product description says it has 20+4 pin main power supply, 12V ATX, 6 peripheral, 1 floppy and 1 SATA. Instead the PSU has 24 pin main power supply (instead of the split 20+4), 3 peripheral, 1 floppy and 2 SATA. Even the picture on the box shows the supply with 20+4 pins but inside the box it is different. This was no good for me because I couldn't even use the main power supply. I guess the product wasn't as advertised.
Had to return it. Now I need to look for another PSU!
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Verified Purchase
One of the most common things to go out on an office computer is the power supply. It is well worth the money to have one of these in the office storage closet for when you smoke your power supply in one of your computers. They are inexpensive and you'll be glad to have it, especially if your office is busy and you need the computer up and running ASAP. I've used a couple Apex units to replace power supplys that have gone out on our computers and found them dependable, cool running and super easy to install.
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Verified Purchase
Fit my case (as expected) and puts out good power for a desktop having 1 case fan, an audio card, 2 cd readers/writers, 2 hard drives, 1 external USB drive, and an assortment of USB devices plugged in at various times. I use the motherboard's graphics chip rather than a third party graphics card.
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Verified Purchase
I had a home desktop that just quit powering up all of a sudden. Took a chance and ordered this. Had never swapped one before, but it's pretty much plug and play. Unplug the old one, plug in the new one, and the machine is working again. Good price
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Verified Purchase
What's to say? It works, it fits. Quality/longevity remains to be seen, but we have every reason to believe it was a good purchase. Amazon had the best price around.
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Verified Purchase
This product was installed in my computer and surpass my expectations. It is working very good. As always the products from Amazon are very goods.
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