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CoolMax > 
Item#: 9SIA4S82BP8932

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The ZU Series ZU-900B Power Supply is ideal for demanding users, with 900W maximum power output and 80 PLUS Bronze level efficiency. Its modular design allows for easy cable management and keeps the case's interior tidy. The strong single +12V rail provides the maximum power to drive a power-hungry CPU and multi-GPU configurations. 

  • newegg 80 PLUS BRONZE CERTIFIED The Coolmax ZU Series ZU-900B Power Supply offers 80 PLUS Bronze level of energy efficiency – up to 85%. The high power efficiency means minimal heat buildup and less wasted power. It also saves you money on your electric bill. The value of active power factor correction is up to 0.99 to ensure maximum efficiency.
  • newegg SINGLE STRONG 12V RAIL The single +12V rail gives the maximum power output, rail stability, and compatibility with hardware. With 77A output, it juices up your high-end CPU and even multiple graphics cards configurations.
  • newegg QUIET FAN The quiet 140mm double ball bearing fan delivers excellent heat dissipation at a low noise level. It helps your PSU run at peak performance. It’s ideal for quiet and high-performance PC buildup. In addition, vents on the back panel enhance the overall air circulation.
  • newegg MODULAR DESIGN The modular design allows you to use only the cables you need. You get a clean inner look and unobstructed airflow for your PC system.

Learn more about the CoolMax ZU-900B

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Customer Reviews of the CoolMax ZU-900B

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  • Chris H.
  • 2/4/2016 7:26:37 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsKeep on pumping

Pros: I haven't measured my power draw, but I have 2 GTX770s slid, a 4th gen i5, 4x4gb ram, 3xHDD, 2 opticals, 4xSDD and a handful of USB peripherals that draw power and this thing is still rocking.

Cons: none

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  • ismet c.
  • 1/23/2016 6:38:33 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsnoooo goood work for 15 days

Pros: none

Cons: allll

Other Thoughts: junk

Did you find this review helpful? Yes No

  • adriana m.
  • 1/22/2016 5:27:26 PM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsthis power supply.It is flawed

Pros: the price

Cons: I have changed 2 times because the manufacturer, never repair. shiping pay 2 times for nothing. damage my motherboard and my video card. makes a strange sound as if a family of mice in my pc. I do not recommend. Are there any other options

Other Thoughts: buy it 2 times and 2 failure. that means it's rubbish. I hurt my pc and I went crazy, operating system

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

  • Joseph D.
  • 11/28/2015 10:58:13 AM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsCOOLMAX Website

Pros: Worked for almost 3 years.

Cons: COOLMAX website does not work and it is very difficult to get an RMA for a replacement. Not sure I will purchase another of their products. I had to email them from the Newegg site, on the product page. We'll see where that goes.

Other Thoughts: Had to purchase another power supply to keep going.

Did you find this review helpful? Yes No

  • Gabriel G.
  • 7/21/2015 1:16:20 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsAmazing

Pros: Works great with my gtx980 and i5 3470.
- Gives me more room to work with
- Has enough juice to power 2 980's in SLI
- Very quiet

Cons: None so far

Did you find this review helpful? Yes No

1 out of 5 eggsDON'T BUY

Pros: NO PROS--absolutely the worst power supply.

Cons: PURCHASED 11 of these for our store computers and 7 of these have been defective. After 3 months of use. Was a rebate item of $20.00. ONLY RECEIVED ONE REBATE.
I would not even chance this product if it were $1.00 and a 10 rebate was offered.

Other Thoughts: Return policy does not protect me AT ALL.
That was over $1000.00 investment in power supplies. SAVE YOUR MONEY... I had to replace this with a 750 power supply.

These came with a rebate. I sent out all the bar codes on the boxes... ONLY GOT ONE REBATE of $20.00. Since I cut UPC and mailed out to manufacture... these are not returnable because I cut the bar codes off. GO FIGURE.

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

  • Chase P.
  • 5/25/2015 12:39:45 PM
  • Ownership: 1 month to 1 year

2 out of 5 eggs

Pros: Had the power supply for months with no issues.

Cons: After a few months, the +12V Value went all the down to around 7.9 Volts, which means anything that requires 8+ volts will auto shutdown the PC.

Did you find this review helpful? Yes No

  • Anonymous
  • 3/3/2015 1:17:22 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsgreat value

Pros: works great.

bought 2 and still works.

Cons: none

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  • Donna H.
  • 12/30/2014 9:14:16 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsnice power supply

Pros: works great! brother got one too for similar build and both are working awesome

Cons: none as of yet.

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  • Jaime S.
  • 10/21/2014 8:07:57 PM
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsUnconventional Use

Pros: Works to power 2000 watt car amp in home.
I hooked it up to my car amplifier so I could add some deep bass to my home studio. It turned out quite well and the single 77 amp rail was enough to power my Soundstream TX1-2000D amplifier. I have it wired as 2 ohm load running 1300 watts RMS.

Cons: Taking this thing apart hurt my fingers.

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

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Home
Home > 
Components > 
Power Supplies > 
Power Supplies > 
CoolMax > 
Item#: 9SIA4S82BP8932
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