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Athena Power > 
Item#: N82E16817338052

Athena Power AP-MFATX25P8 20+4Pin 250W Single 80 PLUS Certified Server Power Supply for 1U Mini-ITX

  • 250W Single
  • 20+4Pin
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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With smaller computers in demand, the FLEX form factor is becoming a necessity for Mini-ITX and 1UITX computers. The compact Athena Power Flex ATX AP-MFATX25P8 PSU offers a 250W output, and features 80 Plus certification and Active PFC for high efficiency. It also comes with s smart fan controller and a remote ON/OFF feature.

  • newegg A Perfect Fit The compact, flexible FLEX ATX power supply is designed for 1UITX rackmounts, Mini-ITX chassis, or as a replacement PSU for IBM SurePOS, Shuttle XPC, and HP Pavillion systems. Its flexibility can be used to build small media servers and supply power for all types of kiosks, and can even be used for small business servers.
  • newegg 80PLUS Certification The FLEX 250W is one of the latest Flex ATX PSUs that has attained 80PLUS Certification. Providing efficiency during max and low loads, this PSU lives up to the standards of today’s world.
  • newegg Smart Auto Fan Speed Controller With its thermal fan speed control, it will detect the amount of heat generated by the computer and spin accordingly. Using this controller to detect the heat levels of the PSU, it will adjust the fan speed accordingly. With this feature built in, worrying about the heat level of a PSU becomes almost non-existent.

Learn more about the Athena Power AP-MFATX25P8


Athena Power


Maximum Power
Main Connector
Output Current
+5V@12A, +3.3V@12A, +12V@14A, -12V@0.8A, -5V@0.5A, +5V-SB@2.5A
Input Voltage
88 -264 Volts Ac
Input Frequency Range
50/60 Hz
100,000 Hours on Maximum Load at +25°C
Hold-up Time
17ms Minimum at Nominal Input Voltage
5 ~ 90% on Operating, 5 ~ 95% on Storage
0° C ~ +25° C on 250W Output Load or 0° C ~ +50° C on 220W Output Load
3.2" x 1.7" x 6.0"
1.5 lbs.


Dielectric Withstand: Primary Frame Ground 1800V AC for 1 Second

Rise time: Less than 20ms

Certification: FCC, UR, CB, CE, Rohs, 80 PLUS

Manufacturer Warranty

1 year limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 0 day

Customer Reviews of the Athena Power AP-MFATX25P8

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  • John H.
  • 2/21/2014 2:45:12 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggs

Pros: quiet, works, 80+, heavy so you know there is good stuff inside.

Cons: screw and fan hole pattern off. makes it hard to mount. fan does not line up with case. could be problem with case BUT two other power supplies fit fine. short power cable. If the cable was 1" shorter, this would not have worked and would have gotten 1 egg.

Other Thoughts: It worked, barely, for my application. Long may it last.

Manufacturer Response:

Thank you for your review! Every User's feedback is immensely valuable to ACPC. In regards to fitment, screwhole patterns follow an industry standard. However, fan/ac plug/wiring harness position/etc vary between PSU vendors. This is one reason why most reputable case manufacturers offer a Compatibility List and will design their cases and mounting brackets to fit a small select number of PSU vendors' products. Should any User be unsure whether the fitment may match, he/she may contact the case manufacturer for a Compatibility List. Our Customer Service personnel will also be able to provide advice on fitment issues. ACPC Customer Service can be reached via landline at 626-810-5008 or via email at Thanks again!!

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  • Bret C.
  • 2/12/2013 2:00:28 PM
  • Tech Level: High
  • Ownership: more than 1 year

4 out of 5 eggsloud

Pros: its small and it works...

Cons: its loud and i don't want to use it. had it for a year used it once because it was loud.

Other Thoughts: not worth the money

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  • Anonymous
  • 4/5/2012 9:38:02 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsVery short ATX cable

Pros: Power up my equipment (D2500CC) just fine. Also 80+, though that doesn't mean much when your equipment draws < 10% of the rated wattage.

Cons: The ATX power cable is very short, and won't reach from the PSU to my motherboard in my 1U case. I know some people like short cables, to reduce clutter in a tight environment, but at the very least Athena Power should have included an extension for those of us that need more distance. Plan on dropping a few extra $$$ for one if you want to use it in a similar situation.

Other Thoughts: I wish manufacturers offered a substantially lower wattage (~50-100W) version in the same form factor.

Manufacturer Response:

We at Athena Power invite you to contact us at (626) 810-5008 and speak with one of our representatives, our representatives will be happy to assist you and may even be able to provide you with an extension for no cost. We understand that everyone has different needs for their system and we want to be a part of that solution. Thank you.

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  • Robert W.
  • 1/2/2012 7:44:42 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsA bit loud but works fine

Pros: Fits my Shuttle case, cables are long enough.

Cons: Definitely louder than the one it replaced. But maybe that's why it has a 100000 hr MTBF spec. The cheaper ones don't even list reliability specs.

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  • Anonymous
  • 11/27/2010 10:59:13 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggs

Pros: None, for my application

Cons: I needed a power supply of this size that offers a -5 V rail, and this one doesn't provide it... despite claiming to do so (even on the outside of the power supply.)

Manufacturer Response:

We would like to thank you for purchasing our product.

We apologize for any problems you have encountered. If the product is different than the specs indicated on Newegg, please contact us at (626) 810-5008 or E-mail us at at your earliest convenience and we will assist you with the services. We will gladly exchange the units for you. Also, in regards to Newegg’s policy, defective products have up to a 30 day warranty for the merchandise to be returned. Under the warranty, you may exchange the product.

-Athena Computer Power Corp.

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Athena Power > 
Item#: N82E16817338052
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