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Enermax > 
Item#: N82E16817194089

ENERMAX NAXN ENP550AWT 550W ATX12V Active PFC Power Supply

  • ATX12V
  • 100 - 240 V
  • Active PFC
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Learn more about the Enermax ENP550AWT




Maximum Power
1 x 120mm fan
Main Connector
+12V Rails
PCI-Express Connector
1 x 6-Pin, 1 x 6+2-Pin
SATA Power Connector
Over Voltage Protection
Input Voltage
100 - 240 V
Input Frequency Range
47 - 63 Hz
Input Current
+3.3V@25A, +5V@20A, +12V1@19A, +12V2@19A, -12V@0.8A, +5VSB@3.0A
6" x 3.5" x 5.5"


1 x Main connector (24Pin)
1 x 4+4 Pin CPU
4 x Peripheral
5 x SATA
1 x Floppy
2 x PCI-E 2.0
ErP Lot 6 (EuP) 2010 ready! - Help system to meet ErP Lot 6 2010 (<1W at standby mode) with high efficiency 5Vsb circuitry.

AirGuard - Air-inlet with optimal aero-dynamical design reduces noisy air turbulences.

SafeGuard - Multiple protection circuitry of OVP, UVP, SCP, OPP, and SIP protect your system.

MULTI ready - Ready for next-gen MULTI CORE systems as INTEL CoreTM 2 Duo / Quad / Extreme / i7 / i5 and AMD AthlonTM 64X2, PhenomTM II.

SILENT ready - Ultra silent 12cm fan with intelligent RPM control guarantees cool performance and silent operation.

24/7 ready - High-Quality components and dual 12V rails design enable non-stop usage with stable and reliable current.

Active PFC inside - Active Power Factor correction improves PF value up to 0.99 and minimizes reactive power waste.

Dimensions & Weight

150 x 86 x 140 mm

Manufacturer Warranty

3 years limited
3 years limited

Quick Info


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

Customer Reviews of the Enermax ENP550AWT

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  • Mark L.
  • 8/29/2012 6:23:05 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGood value and works perfectly!

Pros: Good value
All the connectors you need for a single video card install

Cons: None

Other Thoughts: Excellent product.

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  • Patrick M.
  • 7/8/2012 2:28:03 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Supplies power, as advertised.

Cons: None.

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  • Jaclyn C.
  • 2/16/2012 5:11:42 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat power supply

Pros: Having owned this for 2 months, it runs great. Couldn't ask for a better psu as it is quiet and very reliable.

Cons: More expensive then I was looking to spend, but otherwise a great psu.

Did you find this review helpful? Yes No

  • Jennifer B.
  • 8/31/2011 11:34:29 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood PSU from a Solid Brand

Pros: Good power supply for the price. Lots of length on the cables and plenty of attached connectors.

Nice looking when top or bottom mounted because either side has the decal oriented correctly.

Runs relatively cool.

Cons: A bit noisier than I expected. I plan on removing the installed fan guard on the unit. I'm pretty sure the 120mm fan is buffeting the air over the grill/guard.

Other Thoughts: Voltages are stable, which is all I ask for. The other reviewer mentioned it is not 80+ Certified. Nor is it modular. It was a bit of a tight squeeze in a Micro ATX case.

Did you find this review helpful? Yes No

  • Erick P.
  • 4/20/2011 9:45:16 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsGood PSU for the price

Pros: Very Quiet. Does not heat up case much. Very stable power output. Everything I would expect from Enermax. Almost everything you need and nothing you don't.

Cons: (I would imagine thse are the reasons it is a cheaper psu.)
Not 80+ certified. This is why 4/5 eggs. Not modular.

Other Thoughts: A great buy if you are on a budget. Even if you don't buy this one, Enermax is a great brand to shop. Really, the only downside to this product is the lack of the 80+ certification.

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

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Home > 
Computer Hardware > 
Power Supplies > 
Power Supplies > 
Enermax > 
Item#: N82E16817194089
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