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Item#: N82E16817339002

hec Zephyr MX 750 750W Peak Output ATX12V V2.3 / EPS12V V2.91 SLI CrossFire 80 PLUS Certified Active PFC Power Supply

  • ATX12V V2.3 / EPS12V V2.91
  • 80 PLUS Certified
  • 100 - 240 V
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Modern video cards and modern computers require a power supply with some muscle, and Hec's Zephyr model aims to do just that.

Capable of providing a continuous 750 Watts, this powerful supply is both NVIDIA SLI and ATI Crossfire X certified. With an efficiency of 84%, less power gets wasted as heat, and active Power Factor Control (PFC) also cuts down on energy requirements. In addition to saving power, it's also RoHS certified. Four powerful +12 V rails allow for easier power regulation while still delivering the power you need. A 12cm fan and a temperature-controlled 8cm fan give cooling with noise control. Connections for seven peripherals and eight SATA drives as well as up to six PCI Express boards (4 six pin and 2 eight pin connectors) give you plenty of versatility.

Whether you need to replace an existing supply or your building a custom computer, this could very well be the supply you need.

  • newegg ATX12V and EPS12V Compatible Compatible with the ATX12V (ATX 2.2) and EPS12V v2.91 standards, the Hec Zephyr HEC-750DR-AT provides maximum power stability to drive the latest Intel and AMD processors as well as other components for desktop and server computer systems.
  • newegg 750W Continuous Power The Hec Zephyr HEC-750DR-AT provides a continuous power of 750W for a safe, reliable output for high-end computer systems.
  • newegg Highly Efficient Providing up to 84% power efficiency, the Hec Zephyr HEC-750DR-AT power supply saves energy and may even reduce your electric bill!
  • newegg Exceptional Cooling without Annoying Noise The Hec Zephyr HEC-750DR-AT features an 80mm and 120mm smart fan with Super Silent & Ultra Cool thermal control to deliver highly efficient cooling at whisper quietness.
  • newegg NVIDIA SLI Certified The Hec Zephyr HEC-750DR-AT power supply has gone through a series of rigorous NVIDIA SLI certification tests for maximum system stability when building NVIDIA SLI PCs.
  • newegg ATi CrossFireX Certified The Hec Zephyr HEC-750DR-AT has gone through a series of rigorous ATi CrossFireX certification tests for maximum system stability when building CrossFireX Ready multi-video-card PCs.

Learn more about the Compucase Zephyr MX 750


Zephyr MX 750


ATX12V V2.3 / EPS12V V2.91
Maximum Power
750W Peak Output
1 x 120mm Fan (<16dBA)
Main Connector
+12V Rails
PCI-Express Connector
2 x 6-Pin, 2 x 6+2-Pin
SATA Power Connector
SLI Ready
CrossFire Ready
Power Good Signal
On Delay 100~500 ms, Off delay 1 ms
Hold-up Time
16.6 ms minimum at full load and normal input
Up to 88% Efficiency
80 PLUS Certified
Over Voltage Protection
+5V MAX 6.3V, +12V MAX 15.6V, +3.3V MAX 4.5V
Overload Protection
110~150% load
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Input Current
+3.3V@24A, +5V@20A, +12V1@30A, +12V2@30A, -12V@0.3A, +5VSB@3.0A
FCC, UL, TUV, CE, Rohs
6.5" x 5.9" x 3.4"


1 x Main connector (20+4Pin)
1 x 12V(4+4Pin)
1 x 12V 8 Pin
5 x Peripheral
8 x SATA
1 x Floppy
4 x PCI Express
Meet ATX12V V2.3 & EPS12V 2.91 standard and backward compatible with ATX12V 2.01 standard

Fully compatible with INTEL Core i and AMD Phenom series multi-core CPUs

Fully supports latest NVIDIA 2-Way/3-Way SLI & AMD 2-Way/3-Way CrossFire X technologies with 8pin PCIe 2.0 connectors (backwrad compatible with 6pin PCIe connector)

Japan made 105°C capacitors provides the best solid quality

+12V multi-rails output circuits

High value and efficient +5V standby energy: Fully support microsoft Windows VISTA/7 power management function and USB devices can be charged under PC power off status

12CM fan with Intelligent-quiet cooling system (<16dBA)

Over Current/Voltage/Power Protection, Under Voltage Protection and Short Circuit Protection

Full range

Meet 80 Plus and Energy Star requirement: Extreme high efficiency up to 88% and Active PFC up to 99%

Manufacturer Warranty

2 years limited
2 years limited

Quick Info


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

Customer Reviews of the Compucase Zephyr MX 750

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  • Michael G.
  • 7/22/2014 2:29:32 PM
  • Tech Level: Average
  • Ownership: more than 1 year

5 out of 5 eggsAwesome and reliable

Pros: - Lots of power connectors

Cons: - Wish they were modular connections to the PSU.

Other Thoughts: Bought one in 2007 for my gaming rig, and another one in 2008 for my file server (with 10 HDDs in it, granted they don't use a lot of power but 8x SATA connectors sure was nice). My server of course runs 24/7 and my gaming rig gets shut down every night. I've never had a single issue with power, these are solid units.

I'm worried with some of the recent reviews, perhaps their quality control went down? Hopefully not because i'm going to buy another one for a DVR server. Six and seven years though, that's pretty good these days.

Did you find this review helpful? Yes No

  • David B.
  • 5/29/2014 7:13:31 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat PSU!

Pros: This is a great PSU. Although it is not modular, you do get more than what you pay for. Back when I got it, it was 79 on sale.

- Provides a great amount of power and it is 80+ certified.

- Has been powering my desktop for more than a year now without issue.

- Well made.

- Has a lot of connectors for all and more of your peripherals inside of your desktop.

- Much better quality than the burnt out one I replaced.

Cons: - Lots of connectors, but also a ton of wiring. I had to do some serious cable management inside my case and zip tie the slack

- Other than that, nothing.

Other Thoughts: Glad I bought it when I did.

Did you find this review helpful? Yes No

  • Tina G.
  • 4/11/2014 7:42:18 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggs

Pros: Worked well for awhile, doesn't get too warm, powers everything I had.

Cons: Failed after 1 month. 12v rail is now only supplied with ~5v making it impossible to do anything more demanding than email.

Other Thoughts: Won't be purchasing from this manufacturer in the future.

Did you find this review helpful? Yes No

  • Jack H.
  • 3/21/2014 10:00:52 AM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggsDefective

Pros: Arrived quickly
Unit was decent quality, felt solid with good connections

Cons: Unfortunately, the unit I received was defective. When trying to boot up, it would provide power for 1-5 seconds before shutting off. I would then have to unplug it from the wall to try again (while troubleshooting and testing connections.)

Other Thoughts: I'm returning for a replacement but it is out of stock according to Newegg's website. If that is still the case once it arrives, I will be electing for a comparable unit. If it is in stock I will come back and edit this post accordingly.

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

  • Patrick T.
  • 3/12/2014 1:17:48 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsGreat Value

Pros: 80 PLUS rating
Grille design
Cable Protection
Quiet and Cool

Cons: Not modular
No effect lighting

Other Thoughts: NO issues whatsoever. Good purchace IMO

Did you find this review helpful? Yes No

  • Andrew H.
  • 2/9/2014 12:25:38 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsNice!

Pros: I have owned this PSU since 1/30/2008 so that's over 6 years. The PSU is still working great. It's been in several different computer builds and configurations and it's still going great. I've had this thing powering SLI and Crossfire and it never stuttered. Right now it's back to powering my older Crossfire rig. I wouldn't hesitate buying another, since it held up so well for this long. Lots of connectors!!!!!!

Cons: None. Can't really count this as a con unless you're really obsessed about case wiring, but there are lots of connectors and wires. I would prefer having them, but some people may think that's "ugly."

Other Thoughts: I would buy another.

Did you find this review helpful? Yes No

  • Vincent G.
  • 2/2/2014 12:18:36 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGood price for the power

Pros: Bought mine back in 2011, still running strong with no problems.

Cons: None as far as I am concerned.

Other Thoughts: I'd buy it again.

Did you find this review helpful? Yes No

  • Ian V.
  • 1/23/2014 6:45:52 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsStill running strong

Pros: I bought this on 9-11-2008 and it's still running strong. I have my system on almost 24 / 7 and I haven't had a single problem with this PSU. All the fans are working still, there is a blue led in the PSU with mine that matches my Antec 900 perfectly. The PSU is also incredibly quiet.

Cons: The only con I can think of is the blue led might not match up with other builds if you're going for a color scheme. My next rig will have red led's with the Thor V2 case so the blue might be a bit out of place. That isn't really a big con though if at all.

Other Thoughts: I am glad I took a chance on this. I hadn't heard of HEC at the time but they really came through with this PSU.

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

  • 1/10/2014 1:00:35 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsyup, it's a PSU.

Pros: Powers the computer. Not sure what more you want from it.

Cons: Not exactly easy to keep neat, but awell.

Other Thoughts: wish it would stop powering my CPU fan... sounds like a jet engine.

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  • Billy D.
  • 12/1/2013 10:42:16 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsJUNK!!!!!!!!!!!!

Pros: worked for a while, lots of connectors

Cons: my system just started to reboot out of the blue last week, I have spent days trying to figure out what in the world was happening, finally changed the psu and voila FIXED!! Will never again buy any psu that's not from a top notch company. 2nd machine this week that has had a bad psu, the other was an ocz stealth. From now on I believe I will stick to Corsair or Seasonic.

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

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