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Item#: 9SIA4S82BP8926

COOLMAX ZU Series ZU-500B 500W ATX12V v2.31 / EPS12V v2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply

  • ATX12V v2.31 / EPS12V v2.91
  • Modular
  • 80 PLUS BRONZE Certified
  • 115V ~ 230V
  • +5V@24A, +3.3V@24A, +12V@36A, -12V@0.5A, +5VSB@2.5A
  • ATX12V & EPS12V Power Supply
  • 110 V AC 220 V AC
  • 80 Plus Bronze

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Coolmax ZU series offer 80 PLUS Bronze levels of energy efficiency, massive 12V single rail output giving you the power you need and modular cable management creating a proper airflow inside the case. The COOLMAX ZU Series ZU-500B features one 6-pin and one 6+2-pin PCI-E connectors for supporting high end graphics card.

  • newegg 80 PLUS BRONZE Certified The 80 PLUS BRONZE certified power supply provides high power efficiency of at least 82% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
  • newegg 500W Continuous Power with Single Strong +12V Rail The COOLMAX ZU Series ZU-500B delivers 500W continuous power output as needed in a real world operating environment. Powerful single +12V rail at up to 36A design ensures the maximum provision of 12V power to energy-hungry CPU and VGA card perfect for future high-end component upgrades or overclocking.
  • newegg Modular Cable Management Cable management design improves internal airflow and reduces clutter by allowing not just hiding but removal of un-needed wires completely.
  • newegg 140mm Silent Cooling Fan The COOLMAX ZU Series ZU-500B features a quiet 140mm double ball bearing fan for silent cooling operation in the power supply enclosure.
  • newegg Superior protection Multiple protection circuitries of OCP, OVP, SCP, OPP and OTP protect your system.

Learn more about the CoolMax ZU-500B

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Customer Reviews of the CoolMax ZU-500B

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  • Yuki W.
  • 3/12/2014 9:07:13 AM
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsWorks

Pros: It's priced very well for a modular PSU.
That's the main reason I purchased this particular unit.
Luckily mine's been working for more than a year.

Cons: Unfortunately about 5 minutes after I turn on the computer it makes a high pitched noise for a good minute or so. This goes away after that minute and doesn't make a sound until the next time I turn on the computer.
My 5V gets about 5.5V (MB seems to be doing alright though) but the other voltage seem to be within reasonable specs.

Other Thoughts: I only use my computer to do light duty stuff like watch cat videos and the like, so maybe that's why I haven't had many issues.

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

  • Michael L.
  • 1/23/2014 3:43:43 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsBad

Pros: Lasted 3 months just fine.

Cons: Made a loud bang and then did not turn back on.

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

  • David C.
  • 2/19/2013 5:27:00 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDO NOT BUY!!!

Pros: It delivers power to you computer, well sort of.

Cons: Its is the loudest item on my computer. It make a weird high pitched humming sound and is very annoying. Oh ya and it also died on me within the 2 months, and COOLMAX has very bad customer support.

Other Thoughts: its horrible!

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

  • Vincent M.
  • 10/12/2012 10:29:58 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDead after 3 weeks

Pros: Modular design is always nice, unnecessary cables not cluttering airflow.

Cons: I had the same problem Dice did. The power supply worked fine for about 3 weeks, then one night there was a loud POP, and it completely died. Unfortunately, I waited too long to do an RMA, so I went and bought something new. Keeping a close eye on my Dad's PC, which has the same model PS in it.

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

  • Joel E.
  • 9/30/2012 7:08:19 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsFailed after 7 months

Pros: Looks good, superficially well made. No concerns while it lasted.

Cons: Failed with a loud pop, probably a blown capacitor. I made a brief attempt to figure out how to make a warranty claim and gave up and bought a PC P&C.

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

  • Robert M.
  • 4/17/2012 12:52:46 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsNot recommended

Pros: Some modularity of cables

Cons: I bought 4 units for 4 custom desktops, with 4 ASUS P8B WS motherboards. All 4 PSUs registered 5.5-5.7v on the +5v line (confirmed with a multimeter). The motherboard showed this value out of acceptable range. I emailed Coolmax tech support and they were no help (they blamed the MB). ASUS said their MB could handle the extra voltage, so I kept the PSUs. The +12v line shows 11.5v. Looks like a resister was mis-placed in this model.
One PSU had a current spike when running Windows Experience Index, which shut down the computer, so I RMA'd it (I tried it in a second system with the same results - spiked when testing the video card). Replacement still had voltage issues. Seems to be a problem with this model.
Overall, for first impressions, I won't buy this model again, and probably won't buy Coolmax products again.

Other Thoughts: Not as modular as other PSUs. One two-molex line and one two-sata line cables are built-in. The rest of the cables can be added as needed.
Newegg RMA process for defective PSU was very easy. Turn-around time was decent.
I gave 2 egg rating because the PSUs do work, but they have issues and I don't recommend buying this model.

11 out of 11 people found this review helpful. Did you? Yes No

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Item#: 9SIA4S82BP8926
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