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Item#: N82E16811353002

DIYPC Alpha-GT3 Black Acrylic and Aluminum ATX Bench Case Bench Computer Case for ATX/Micro ATX motherboard – PC components not included

  • Acrylic and Aluminum ATX Bench Case
  • 1 x USB 2.0, 1 x USB 3.0; 1 x headset / 1 x mic Front Ports
  • 1 ~ 2 x 5.25" External 5.25" Drive Bays
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Tired of the routine design and architecture of the conventional tower-style PC case? Feel bored with the dull elements of meshes, transparent side panels and fancy LED lights of the so-called high-end chassis? Toss the limitation and bridle into recycle bin, and indulge yourself in the nakedness and pristine form of the PC components with the open type DIYPC Alpha-GT3 acrylic bench case, which endows your build a unique appearance and makes your system stand out from crowds.

With dozens of mounting posts, screw holes and cuttings for cable-through on the upper acrylic board, the dual-layer Alpha-GT3 bench case can accommodate a Micro ATX/ATX motherboard and a longer graphics card, while the open style delivers excellent performance on cooling, compatibility, and maintenance, ideal for testing and overclocking. The HDD and ODD can be easily mounted in the compartment of the lower stand. For uncompromising convenience, a easy-access panel on the side is also included for easy connection to the peripherals.

  • newegg Easy to Install With the acrylic motherboard tray mounted on four stands, the dual-layer, open-style bench case delivers unlimited space for components and unmatched convenience for system assembly. No more hassles of groping in a narrow space!
  • newegg Excellent Cooling With heat circulation below the motherboard and high-efficiency heat convection, the bench case delivers superior cooling performance for the whole system.
  • newegg Stand-Mounted ODD and HDD The HDD and ODD can be installed in the lower compartment below the acrylic board, lowering the center of gravity for better stability and proving better protection.
  • newegg Easy Access Panel With one USB 3.0, one USB 2.0, and one headset + one mic ports, the side panel allows easy access to a variety of peripherals.

Learn more about the DIYPC Alpha-GT3




ATX Bench Case
Case Material
Acrylic and Aluminum
With Power Supply
Motherboard Compatibility
Micro ATX / ATX


External 5.25" Drive Bays
1 ~ 2 x 5.25"
External 3.5" Drive Bays
1 ~ 3 x 3.5"
External 2.5" Drive Bays
1 ~ 2 x 2.5"
Expansion Slots

Front Ports

Front Ports
1 x USB 2.0, 1 x USB 3.0; 1 x headset / 1 x mic

Physical Spec

14.9" x 12.1" x 12.1"
6.7 lbs.


Cooling: Open Type / 80mm fan (optional)

Open style delivers better performance on cooling, compatibility and maintenance

Support up to 3 x GPU graphic card

Easy mounting for hard drives and optical drives on the stand.

Heat Circulation below the motherboard

Easy to assemble and move

Convenient for testing, overclocking or gaming

This case has enough space for any big sized parts needed for the high performance PC

This case is DIY unit. It comes with parts and you need to assemble it piece by piece. Please read through the installation menu during assembling, and you are going to enjoy a 100% DIY fun experience.

Quick Info


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

Customer Reviews of the DIYPC Alpha-GT3

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  • Scott O.
  • 5/21/2014 6:11:07 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsnice case, could be improved

Pros: Fairly compact case with room for lots of hardware. Easy to disassemble a computer setup and add a new one back. Actually purchased this case to put inside a homebuilt arcade / htpc cabinet, like it so far.

Cons: The acrylic is very brittle, im surprised my setup has survived, as I am constantly moving it and carrying it around. My USB / sound microboard was doa, but I didn't plan to use it, so no damage done.

The directions really suck, because I put mine together wrong several times, and the final version still did not fit together 100% correctly.

Other Thoughts: With a few minor modifications this case could really shine. If they had allotted for 1/2 more inch of height in the bottom tray, there would have been room for a 5 in 3 (5.25 bay) raid enclosure AND 1 optical drive. 4 full 5.25 bays would have been very nice. Also I semi wish for a little cable management for the power supply cables to the drive bays... glad im using a modular...

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

  • David T.
  • 4/6/2014 5:20:35 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsDecent Test Bench

Pros: Easy to put together
Comes with extra screws
Well built

Cons: The two posts that are used to mount the video cards or other PCI-e slot devices are too close together. You can't put a video card in the last slot unless you use a riser cable because of this.

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

  • Alan W.
  • 3/16/2014 11:11:33 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsLove It

Pros: Looks and works just like described
Love It !!!

Cons: On a scale of dificulty putting together " 10 " being hardest.
I give it a 9! ( But its worth it )

The dificulty ? -> The instruction lack clearity,

Did you find this review helpful? Yes No

  • Kevin m.
  • 2/27/2014 8:57:49 AM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsGood System

Pros: System is built great. All parts arrived in one piece. I really liked the box for all the small parts. That is a major plus

Cons: My one main con are the directions.... they are terrible. It honestly looks like they took the CAD drawings and printed them. There was no finished product picture included. This is why i took one egg off.

Other Thoughts: This system is not the easiest to build, not because it takes any skill, but the directions are almost useless. I went back to Neweggs pictures to build the system. Take your time and it will be fine. Remember this is a TEST BENCH, not a normal enclosure, or even an open air case. It is purpose built to allow for multiple systems to be built, tested, and removed. This is why I purchased one for my company

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

  • David F.
  • 2/20/2014 12:15:04 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsFlexible and functional

Pros: Open design allows for a wide variety of parts and configurations. Relatively easy to assemble.

Cons: Open design makes it less useful for everyday use. Your cat will try to lay on this.

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

  • Christopher M.
  • 2/17/2014 9:19:27 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsInexpensive but solid test bench

Pros: Very easy to put together. The instructions were good and the labeled plastic container of bolts was awesome! That is the first time I have ever seen that. Normally, you just receive 15 little baggies screws. Very organized!

Cons: If I have to give it a con, peeling the protective layer off the acrylic was more time consuming that actually putting it together. However, I understand it is there to protect!.

Other Thoughts: Great product. I would highly recommend it.

Did you find this review helpful? Yes No

  • 2/16/2014 2:03:08 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsWaste of money

Pros: - compact size

Cons: - assembly,
- user manual,
- quality of parts,
- price,

Other Thoughts: I wanted to use it for my mining rig, but I will rather buy a milk crate. I expected more for $69.99.
User manual was created by a kid probably. Not many useful info there.
Motherboard connectors (USB, mic, audio, power, reset) were so poorly made they broke during an installation.

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

  • Kelly W.
  • 2/14/2014 1:32:10 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsDecent choice for a test bench

Pros: + Fabricated from non-conductive, black acrylic plastic (PMMA)
+ Provides an acceptable platform on which to bench test components when frequent swapping out of parts is required.
+ Excellent access to the motherboard, RAM, and expansion slots
+ Reasonable access to the power supply and 2 removable combination SSD/HDD trays
+ Permanent mount point for optical drive

Cons: - PMMA acrylic plastic is durable but brittle, hence the numerous warnings about over tightening of screws and keeping the components safe from impact. As thick as the sheets for this case are, I think they could crack under moderate to rough handling.
- The brown protective paper used to protect both sides of every piece of acrylic used in this test bench is a major pain to peal off. It took me approx 45 min to accomplish.
- Expansion slot brace bar is the worst part of the design. The screw holes are tiny and fine threaded. Traditional, coarse thread thumb screws will NOT work. The curved edge presumably included to increase rigidity hinders access to the expansion brackets and the screw holes.
- As has been mentioned previously, the assembly instructions are a mostly useless hodge-podge of translucent red/green/gray line drawings.
- All vertically oriented case faces use a simple tab/slot attachment mechanism which results in a loose and wobbly cooling fan mount, PSU mount, and drive bay.

Other Thoughts: I certainly wouldn't use this as a permanent home for computer components but that's not what it's designed for. I'd suggest installing the motherboard stand-offs before installing the upper deck to the case as you need to affix them from below with screws. I used a rechargeable, electric screw driver with the torque limiter set to 4 out of 20. This kept me safe from cracking the acrylic due to over-tightening of the screws.

There are plenty of places that this test bench could be improved. Assembly is best attempted when you have about 2 hours of free time and are in a good, patient mood.

I've only used this with ATX motherboards. mATX looks to have the stand off installation points correctly. I can not comment on other form factors

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

  • Alex L.
  • 2/13/2014 10:23:10 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsProvides a Good Workbench Solution Without Breaking the Bank or Looking Homemade

Pros: Really can't beat the open design for airflow/cooling. Ran my 7950 all day and night and never broke 66C, but also could just be one of those rare, perfectly manufactured GPU's.

The access to the MoBo is nice, and being able to wrap excess cable/cords around the supports and thread them through the prefabricated holes allows for some nice cable flow. Very visually pleasing if you're a technophile.

The USB, mic, and headphones "front panel" jacks can be anchored in a number of places for personal preference/utility.

While you might run into problems anchoring PCI-e expansions correctly (due to holes not lining up correctly), one could easily drill new holes all over the the place to adjust the placement of the MoBo and other hardware. Or for speed. Speed holes, that's a thing, right?

Cons: I haven't had the bench long enough to collect dust yet, but I know that that will be an issue. Especially for pet owners.

All the hardware mounting plates on the lower level squeak. Granted they don't squeak with basic use, but I travel between homes and part of the reason I chose this case was that it wasn't 20lbs+ of metal.
Would be great if the manufacturer could find a way to make the pieces fit without the squeaking. Hate hearing that sound in the back of my car, makes me think stuff might be breaking.

While the top half (MoBo, ect) is very accessible, the lower half can be a real pain to modify. Want to add a new optical/HD/SS/ect drive? Gotta take out the PSU to be able to anchor them to the drive-mount. Need to connect those new drives to PSU/MoBo? Gotta take out the fan and work around the fan-mounting plate. A better design would allow those anchoring-plates (PSU and Fan) to be easily removed (sliding out for instance, held in place with a latch) to allow for easier access to the lower half of the unit.

As others have stated, no mounting location for MoBo fans. But on the flip side, don't think I'll be needing them with the open-air design.

Other Thoughts: Despite the cons above, I'd probably buy this again just because I love the open, workbench look, airflow, and accessibility. Also because I'm really tempted to try to McGyver two of these together.

Also, aside from the power/processing LED at the power switch, there are none of those annoyingly stupid LED lights.

Did you find this review helpful? Yes No

  • John A.
  • 2/2/2014 11:17:49 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsI like it

Pros: Great as a test bench but most useful for those of use who swap parts a lot. It will be perfect for my use.

Cons: Because of poor repackaging or just plain poor packaging the power supply mounting plate was broke. I'm not going to return it because the cost to return it far exceeds superglue. Would be 5 stars if it was shipped new and/or unbroken. It may be new but packaged so poorly its hard to tell.

Other Thoughts: I looked on the DIYPC website to see if parts can be ordered. The site is useless. it has not been updated since 2012 and no one responded to emails.

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

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