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Item#: N82E16817342050

TOPOWER ZU-400W12B-1 400W ATX12V Power Supply - OEM

  • Dual +12V DC Rails
  • OCP – Over Current Protection
  • SCP – Short Circuit Protection
  • Low ripple and noise
  • 100% Hi-Pot Tested
  • Approved by UL, TUV, CB CE, FCC, RoHs Compliant
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Your components deserve low ripple and noise as well as stable power delivery. The TOPOWER ZU-400W12B-1 power supply gives you just that! It has Dual +12V DC Rails to provide sufficient pure power for your core components. A 120mm cooling fan, Hi-Pot test and comprehensive approvals ensure stable power delivery. 

  • newegg Dual +12V rails Dual +12V DC Rails with high combined output can sufficiently juice up your CPU and graphics card.
  • newegg 120mm Cooling Fan 120mm cooling fan delivers a torrent of airflow to keep your power supply enclosure cool for stable and reliable power delivery. Air is vented through the hexagon mesh back panel.
  • newegg Solid Protection Compute with peace of mind thanks to versatile protection circuits with OCP (Over Current Protection), OVP (Over Voltage Protection) and SCP (Short Circuit Protection).
  • newegg Tested and approved The TOPOWER ZU-400W12B-1 is 100% Hi-Pot tested to ensure superior reliability and stability in harsh environments. It is approved by UL, TUV, CB CE and FCC and is also RoHs compliant.

Learn more about the TOPOWER ZU-400W12B-1




Maximum Power
1 x pc 120mm fan
Haswell Support
Over Voltage Protection


1 x pc 20+4 Pin ATX (30cm)
1 x pc 4 Pin ATX 12V (30cm)
1 x pc SATA (30cm)+ 3pc HD (40cm, 55cm,70cm)+ 1pc FDD(85cm)
1 x pc SATA (30cm)+ 3pc HD (40cm, 55cm,70cm)+ 1pc FDD(85cm)
Low ripple and noise, Output over voltage protection

Short circuit protection on all outputs

Approved by UL, TUV, CB CE, FCC, RoHs Compliant

100% Hi-Pot Tested

Quick Info


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

Customer Reviews of the TOPOWER ZU-400W12B-1

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  • Omid Y.
  • 9/15/2013 12:55:21 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsOK Product

Pros: So far it is working fine, not noisy

Cons: Does not offer enough SATA Power connector !! Very disappointed !!

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

  • David C.
  • 9/4/2013 11:14:23 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week

1 out of 5 eggsNOT designed by topower

Pros: None

Cons: topower's new OEM is Leadman. Apparently they wanted to stop selling well built low end PSU's like the old ePower's that were beautifully designed with large heatsinks and big transformers.

Leadman PSU's are the opposite. They are horribly designed flyback converters, and usually little to NO filtering on the DC side of the PSU. These things will run your computer but will seriously wear out your components much faster (Especially your motherboard and hard drive) why do you think it's so cheap anyways?

They also have a poor excuse of a transient filter so the PSU will interfere with other devices around it.

This PSU will probably do about 250W continuously, but not safely at all.

I do not recommend this PSU under ANY circumstances.

Leadman is not known for good soldering either so expect some DOA's.

Other Thoughts: Save yourself some money in the long run and do your computer a favor by avoiding this PSU.

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

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Item#: N82E16817342050
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