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Item#: 9SIA4CP1GG2221

COOLMAX ZX Series ZX-700 700W ATX12V v2.2 / EPS12V v2.91 SLI CrossFire 80 PLUS Certified Active PFC Power Supply

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Coolmax ZX series offer 80 PLUS levels of energy efficiency, massive 12V single rail output giving you the power you need, and super quiet 140mm ball bearing fan ensuring proper airflow inside the case. The COOLMAX ZX Series ZX-700 features one 6-pin and one 6+2-pin PCI-E connectors for supporting high-end graphics cards.

  • newegg 80 PLUS Certified The 80-Plus certified power supply provides high power efficiency of at least 80% at any load between 20% and 100%, saving you money on your electrical bill, reducing heat in your computer's system, and prolonging your system's life.
  • newegg 700W Continuous Power with Single Strong +12V Rail The COOLMAX ZX Series ZX-700 delivers 700W continuous power output as needed in a real world operating environment. Powerful, single +12V rail at up to 56A design ensures maximum power to energy-hungry CPUs and VGA cards - perfect for your future, high-end component upgrades or overclocking.
  • newegg 140mm Silent Cooling Fan The COOLMAX ZX Series ZX-700 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 ZX-700


ZX Series


ATX12V v2.2 / EPS12V v2.91
Maximum Power
Main Connector
+12V Rails
PCI-Express Connector
1 x 6-Pin, 1 x 6+2-Pin
SATA Power Connector
SLI Ready
Haswell Support
CrossFire Ready
Up to 80%
80 PLUS Certified
Over Voltage Protection
Input Voltage
115V ~ 230V
+5V@25A, +3.3V@25A, +12V@56A, -12V@0.8A, +5VSB@3A
6.5" x 5.9" x 3.3"
3.74 lbs.


1 x 20+4-pin Main Connector
5 x SATA
6 x Peripheral
1 x FDD
1 x 6-pin PCI-E
1 x 6+2-pin PCI-E
1 x 4+4-pin
Quiet 140mm double ball bearing fan

Active Power Factor Correction (PFC) with PF value of 0.99

Protection: OCP / OVP / SCP / OPP / OTP

Support NVIDIA SLI or ATI CrossFire system

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the CoolMax ZX-700

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  • Aaron C.
  • 8/20/2014 10:21:39 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggs

Pros: cheap at time bought for a decent 700 watt ps.

Cons: small issue with fan grate when first powered on but fixed by bending it out a little so it does not interfere with fan. so minus 1 egg

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  • Terrell C.
  • 7/4/2014 9:02:54 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsDO NOT BUY

Pros: had enough juice to power my system for a short amount of time.

Cons: unreliable. like others have said. doesn't put anywhere near 700watts and the psu failed on me completely while out of town visiting in laws I don't particularly have anything in common now ill be spending my 4day 4th of july weekend with no computer and nothing to do. I know the warranty is still good but that does me now good in the short term as would have to wait 2-4 weeks for a warranty replacement for that to just die within a year. so for now im stuck having to wait a week for the thermaltake I bought to replace it but at least it should be more reliable. just had to vent. it sucks being away from home and your only plans were to play computer. if I was at home no big deal becauase I could go fishing, go to the gym and/or play basketball but now there is nothing to do but sit here and wait until I get to go home on monday

Other Thoughts: Save up a few extra bucks or wait for a sale and get something more reliable like antec thermaltake
DO not Buy DO not Buy DO not Buy DO not Buy DO not Buy

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  • Jeffrey M.
  • 5/12/2014 8:02:05 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month

1 out of 5 eggs3 of 3 Flash/Pop/Stink FAILS <1 Day, <510 Watts

Pros: None

Cons: coolmax ZX-700

Bought three of these for light altcoin mining, expecting to sacrifice long term efficiency for short term savings.


Because i was mining, I was keenly interested in power consumption. I had a Kill-a-Watt (in the end two in series, as a sanity check) in-line at all times.

It is important to point out these were bottom mounted in a case with a bottom vent. Thus plenty of fresh, cool air of less than 70F was available at all times. This represents IDEAL cooling conditions: heaven help you if you top mount these with warm case air flowing through.

The first one popped in less than one hour at 607W at the wall. Referring to Ecova's best measured efficiency of %86.64 for this particular supply, that's 526W delivered from a supply rated for 672W on the 12V rail alone.

Second build, I was careful to undervolt the video flashing the BIOS. I ran the supply at 450 WaW for about a week. At that point I started fiddling with clocks and settled on settings that drew 540 WaW, or 468W delivered. The second supply popped within three hours.

Ticked at this point, I fired up the third machine on stock BIOS. At 593WaW/514W delivered the third one popped at 20 minutes.

Loud pop, bright flash, acrid smell from all three. Because I was launching or fiddling with each at the time of failure, I had the pleasure of visually witnessing all three..

I wouldn't operate ANY supply at its max rating, but I ran these with a %21-31+ "safety factor" and they still failed.

I should have taken the fact that they are not UL listed as my first clue, and the fact that Coolmax is universally decried as junk on the 'Net as my second. I can't understand how these survived Ecova's tests long enough to be rated. I suspect Ecova was supplied with a special built unit if not of an entirely different design, at least with different component mfrs.

Other Thoughts: Note I did not buy these at Newegg, I'm just so mad that I'll be posting this review to all the sites I regularly order from.

At this point, I figure I have this to look "forward" to I'll return all three for repair. Upon receipt, I'll install them in a machine purpose-built to draw 600W. They'll fail soon enough I'm sure, and I'll return them again. I expect to have to do this THREE TIMES for each supply, and then demand a complete refund under CA's "Song-Beverly Consumer Warranty Act", aka lemon law. After 3X shipping, I'll only get about $30 of the $150 I spent back but its better than nothing, and if we all did this Coolmax will go bankrupt as well it should. Then we'll all have one less fountain of fertilizer cluttering the PC parts landscape.

That's what these supplies are worth: nothing. Less than zero.

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

  • Solomon G.
  • 2/22/2014 11:13:54 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsFailed after a year

Pros: Worked for 1 year

Cons: Did not work after 1 year

Something came loose, started clinking, then smelling like like a fine cocktail of dust and burning wires

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  • Gregory R.
  • 1/21/2014 3:53:27 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Good value

Cons: None

Other Thoughts: Noticebly quieter and more power efficient than the unit it replaced

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

  • dominic m.
  • 1/17/2014 5:59:06 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggscomplete garbage

Pros: absolutely NONE

Cons: this power supply is basically a 500watt, it claims "+12V@56A" but it shuts down at a 25amp draw. The first one I got FRIED when I tried to run 2 7870 video cards. They sent me a replacement with a 90 day warranty even tho I had 1.8 years left of a warranty. The replacement shuts down at half its rated amps. it is complete garbage and should be sued for false advertising.

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

  • James B.
  • 12/6/2013 9:16:16 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsdied less than one year

Pros: the power supply is quiet and worked great had great regulation and it didn't quite last a year in my setup witch i only ran for a few hours a week

Cons: when this power supply went out it gave no warning my computer started up ran for about 20 seconds and shut off just like someone pulled the power plug one day no lights or strange noise or smell just nothing

Other Thoughts: i probally wouln't buy another one of these when i pulled the cover off there was nothing really wrong with it that i could see but there was two smd resistors laying inside the metal housing and no one knows where they came from and there are no signs of where they could have come off the chip board

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

  • Zack C.
  • 10/16/2013 11:27:32 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: price
works great
nice packaging

Cons: the Mail in rebate was a pain in the neck.
you had to go to 3 different sites and make an account to print out a form. but when i read the fine print it says money will be shipped 8 weeks after the promotion ends. that seems a little long to me but hey 20$ is 20%

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

  • Anonymous
  • 10/2/2013 12:36:37 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDon't Work

Pros: Worked for almost 4 months.

Cons: I ordered this thing on the 2th of June. On the 2th of Oct. it wouldn't boot up the computer. It would power the fans but the computer wouldn't boot up.

Other Thoughts: Does anyone make a power supply worth anything any more. I have replaced failed 500Watt power supplies with 750 watt ones and they don't last either. Two computers and four power supplies in 2 years.
it's all junk.

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

  • christopher m.
  • 9/24/2013 10:22:49 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsCoolmax ZX Series ZX-700W

Pros: Keeps it going smooth. On a tight budget, one cannot beat this purchase. I am glad I bought this PSU!

Cons: None to speak of.

Other Thoughts: I highly suggest this PSU to people out there that do not want to, or simply cannot spend alot of money. This gets the job done!

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

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