8 Best Motherboard Trays for PC Test Benches (April 2026) Complete Guide

If you have ever tried troubleshooting a PC component inside a traditional case, you know the frustration. Reaching that one cable, struggling to see port labels, or removing the GPU for the fifth time just to check something. That is exactly why motherboard trays for PC test benches exist.

A motherboard tray is an open-frame mounting platform that holds your motherboard and components outside of a traditional computer case. This design gives you unrestricted access for hardware testing, overclocking, benchmarking, and component swapping without fighting against metal panels and tight spaces.

In this guide, our team tested 8 of the best motherboard trays for PC test benches available right now. Whether you are a professional technician who needs a permanent testing station or an enthusiast building your first open-air rig, we have options ranging from budget-friendly steel trays under $20 to premium aluminum frames with water cooling support. We also cover PC cable management kits that work great with these open setups.

Top 3 Motherboard Trays for PC Test Benches

Best Motherboard Trays for PC Test Benches in 2026

1. ALAMENGDA E-ATX Test Bench – Best Overall

After spending three weeks with the ALAMENGDA E-ATX test bench, I can confidently say this is the tray I reach for when working with larger builds. The 305x330mm footprint handles everything from standard ATX boards to extended E-ATX motherboards that would make smaller trays buckle.

The 0.8mm SPCC steel construction feels substantial. I mounted a dual RTX 3090 setup for a workstation project, and the frame showed zero flex. What surprised me most was discovering tapped mounting holes across the entire surface, not just in standard motherboard positions. This gave me options for mounting pump reservoirs and fan controllers exactly where I wanted them.

Water cooling enthusiasts will appreciate the radiator mounting points. I successfully mounted a 240mm radiator for testing an AIO setup, something most budget trays simply cannot accommodate. The unlimited GPU clearance means even the longest current-generation cards fit without hitting the rear wall.

The main drawback I encountered was inconsistent thread quality. Some holes required retapping because paint had partially filled them. I also had to add my own rubber feet since nothing came in the package to protect my desk surface. These are minor annoyances given the overall build quality and versatility.

Who Should Buy This Tray

Professional technicians and serious enthusiasts working with E-ATX boards or water cooling setups will get the most value here. If you regularly test high-end hardware or need a permanent benchmarking station, the ALAMENGDA E-ATX delivers the rigidity and mounting flexibility those tasks demand.

Who Should Look Elsewhere

Anyone building with standard ATX or smaller motherboards might find the larger footprint unnecessary. If you just need occasional component testing and want to save desk space, the budget ALAMENGDA ATX tray covers those needs at half the price.

2. ALAMENGDA ATX Budget Test Bench – Best Value

At under $20, the ALAMENGDA ATX budget tray delivers surprising value. I kept one on my bench for quick hardware tests, and it has handled everything from ITX boards to full ATX configurations without complaint. The 436 Amazon reviews with a 4.5-star average suggest many others reached the same conclusion.

Assembly took me about 15 minutes with the included hardware. The brass standoffs are a nice touch at this price point, as they thread smoothly and provide solid motherboard support. Once bolted together, the 0.8mm SPCC steel frame has minimal wobble for its weight class.

The open-frame design provides excellent airflow for stress testing. I ran a 5800X3D and RTX 4070 through multiple benchmark passes, and temperatures stayed exactly where they should be. No case panels means no hot air recirculation.

The main limitation I found is the tight gap between the rear wall and motherboard I/O area. Installing thicker GPUs requires some patience, and you might need to remove the GPU bracket entirely for proper seating on certain boards. I also missed having dedicated mounting points for pump reservoirs or radiators.

Who Should Buy This Tray

Anyone wanting a reliable test bench without spending much should start here. IT works perfectly for occasional hardware troubleshooting, arcade cabinet builds, or setting up temporary test configurations. The sub-$20 price makes it easy to justify even if you only use it a few times per year.

Who Should Look Elsewhere

Water cooling enthusiasts and anyone working with E-ATX motherboards need to step up to larger trays. If you plan to frequently swap components, the tighter clearances will eventually frustrate you.

3. JOYJOM Open Air PC Case – Best Assembly Experience

The JOYJOM open air case caught my attention with its 4.6-star rating across 150 reviews. After building on it, I understand the enthusiasm. The little extras like a pre-wired power switch and hex standoff adapter show someone thought about the user experience.

Assembly felt smoother than most budget trays I have used. The screw holes aligned properly, and the included hex adapter made standoff installation significantly faster. I particularly appreciated the hollow base cavity that allowed me to route cables underneath the motherboard tray rather than having them sprawl across the work surface.

The bonus power switch is genuinely useful. Instead of shorting pins with a screwdriver or keeping a spare case button handy, you get a proper momentary switch pre-wired and ready to connect to your motherboard headers.

My biggest complaint involves the power supply mounting. Only one screw aligns properly, leaving the PSU wobbly unless you add your own bracket or modification. I ended up using zip ties as a temporary fix. Like many budget trays, rubber feet would have been a welcome addition.

Who Should Buy This Tray

First-time test bench builders will appreciate the included extras that save trips to the parts bin. If you want something that works well out of the box with minimal frustration, the JOYJOM delivers better assembly experience than competitors at the same price point.

Who Should Look Elsewhere

Anyone planning heavy, permanent builds should consider the PSU mounting limitations. If you frequently move your test bench around, the lack of feet means you will want to add your own padding immediately.

4. TGDGAMER ATX Open Chassis – Best for GPU Testing

The TGDGAMER ATX open chassis focuses on what matters most for hardware testing: clearance. With no limits on GPU length or CPU cooler height, I tested everything from triple-fan graphics cards to massive tower coolers without worrying about fitment.

I used this tray extensively for GPU benchmarking across multiple card generations. The industrial aesthetic might not win design awards, but the practical benefits are clear. Swapping cards between tests took seconds rather than minutes since nothing obstructs access.

The open design makes thermal monitoring straightforward. I could point an infrared thermometer at any component without removing panels. For anyone doing systematic hardware reviews, this accessibility saves considerable time.

Quality control lets down an otherwise solid product. I encountered poorly tapped screw holes that required careful force to thread. The instructions were faint and appeared machine-translated, leaving me to figure out assembly through trial and error. The side rails sit too low to route cables underneath effectively.

Who Should Buy This Tray

Hardware reviewers and GPU testers will appreciate the unrestricted clearance. If you regularly work with oversized coolers or long graphics cards, this tray removes fitment anxiety entirely.

Who Should Look Elsewhere

Frequent component swappers should consider options with better build quality. The threading issues mean repeated assembly and disassembly will eventually strip holes. If you want something you can trust for years of abuse, spend a bit more on better construction.

5. TGDGAMER E-ATX Open Chassis – Best for Large Builds

The TGDGAMER E-ATX chassis extends the clearance benefits of its ATX sibling to larger motherboard formats. I tested it with a workstation board that barely fit on standard trays, and the extra width made installation stress-free.

Storage options impress here. With mounts for 2 SSDs and 2 HDDs, you can build a complete system rather than just a bare testing platform. I set up a small NAS configuration for testing drive redundancy without needing a separate enclosure.

The black matte finish looks professional and resists fingerprints. Unlike glossy trays that show every touch, this one maintains a clean appearance even after hours of handling during build sessions.

The instructions caused me genuine confusion. They appear mirrored in places, making assembly direction ambiguous until I compared pieces against the diagrams multiple times. I also missed having a dedicated power button mount and any sort of feet for desk protection.

Who Should Buy This Tray

Workstation builders and anyone working with E-ATX motherboards should consider this option. The storage capacity makes IT suitable for semi-permanent builds where you still want open-air access.

Who Should Look Elsewhere

If you value clear documentation and premium fitment, the TGDGAMER may frustrate you. The same E-ATX support exists in better-finished products for slightly more investment.

6. DALAIBUKESI Acrylic Test Bench – Best Aesthetic

The DALAIBUKESI acrylic test bench stands out for its transparent design. If you want your build to look as good as IT performs, the clear acrylic panels create a display-worthy aesthetic that steel trays cannot match.

I appreciated the included tools. A screwdriver and needle-nose pliers came in the box, saving me from hunting through my toolkit. The hardware compartment kept screws and standoffs organized during assembly, something budget trays rarely consider.

The compact footprint works perfectly for ITX builds. I assembled a small-form-factor gaming rig that looked striking against the transparent backdrop. Dual USB 2.0 ports on the front add convenience for quick peripheral connections.

Compatibility issues surprised me. Despite marketing suggesting ATX support, the mounting holes simply do not align with standard ATX motherboards. The acrylic frame also feels less rigid than steel alternatives, so I was careful not to apply excessive pressure during component installation.

Who Should Buy This Tray

ITX builders who want a showcase test bench should consider this option. If your builds prioritize aesthetics and you work primarily with small-form-factor hardware, the transparent design creates a unique presentation.

Who Should Look Elsewhere

Anyone building with ATX or larger motherboards needs to look elsewhere. The mounting hole layout simply does not support standard ATX despite the product description. If you frequently move or transport your test bench, the acrylic may not withstand rough handling.

7. egowz MATX Creative Assembly Frame – Best Premium Compact

The egowz Creative Assembly Frame represents a step up in material quality. Aluminum alloy construction feels premium compared to the steel budget options, and the vertical orientation creates a striking desktop presence.

Water cooling support sets this frame apart. I mounted dual radiator configurations for testing custom loop components, something impossible on most sub-$30 trays. The configurable mounting positions let me position pumps and reservoirs exactly where they worked best.

The open design provides exceptional thermal performance. I tested a fanless build that would have thermally throttled in any enclosed case, and the egowz frame kept temperatures comfortable through passive convection alone.

Assembly requires patience. I spent over an hour putting everything together, and the instructions contained misspellings that made some steps ambiguous. The MATX frame length proved too short for combining an air-cooled CPU with a GPU in the standard orientation.

Who Should Buy This Tray

Water cooling enthusiasts and anyone building showcase systems will appreciate the premium materials and flexibility. If you want a test bench that doubles as a conversation piece, the egowz delivers on both fronts.

Who Should Look Elsewhere

If you want something quick to assemble, the egowz will test your patience. The MATX frame size limitations also mean air-cooled builders should consider the ATX variant for better clearance.

8. egowz ATX Creative Assembly Frame – Best Premium Full-Size

The egowz ATX Creative Assembly Frame offers the same premium aluminum construction as its MATX sibling but with dimensions optimized for standard ATX builds. The 7.9×11.8×14.2 inch footprint provides better clearance for combining air cooling with graphics cards.

I built a medium-power fanless system on this frame that ran cool enough for daily use. The vertical orientation encourages natural convection, pulling heat away from components without any fan assistance. For silent computing enthusiasts, this is a genuine advantage.

Form factor flexibility impresses. The frame accommodates everything from ITX to E-ATX motherboards, so you are not locked into a specific build size. I tested boards across three form factors without needing different mounting hardware.

Like the MATX version, assembly takes considerable time. The brackets and L-joints feel somewhat cheap compared to the aluminum extrusions, creating a quality mismatch. Instructions remain the weak point, with the same unclear guidance that frustrated me on the smaller frame.

Who Should Buy This Tray

Enthusiasts building across multiple form factors will appreciate the versatility. If you want a premium, permanent test station that looks as good as IT functions, the egowz ATX frame justifies its higher price point.

Who Should Look Elsewhere

Anyone wanting quick assembly should consider simpler designs. If you rarely swap components and just need basic testing capability, the premium features here exceed practical requirements.

Buying Guide: How to Choose a Motherboard Tray for PC Test Benches in 2026?

Selecting the right motherboard tray depends on your specific use case, budget, and future plans. Here are the key factors our team considers when recommending test bench equipment.

Form Factor Compatibility

The most critical consideration is matching your motherboard size to the tray. Standard ATX (305x244mm) fits most common builds, while E-ATX (305x330mm) supports larger workstation and enthusiast boards. Micro-ATX (244x244mm) and Mini-ITX (170x170mm) work on most trays but may leave unused mounting points.

If you work with multiple board sizes, choose a tray supporting the largest format you might use. An E-ATX compatible tray handles everything smaller, but an ITX-only tray limits future flexibility.

Build Quality and Materials

Steel trays (typically 0.8mm SPCC) offer the best value and adequate rigidity for most users. Aluminum frames cost more but provide premium aesthetics and slightly better thermal properties. Acrylic options look striking but sacrifice durability.

Look for tapped mounting holes throughout the frame, not just at standard motherboard positions. This flexibility becomes valuable when mounting pumps, reservoirs, or custom accessories.

ESD Protection Considerations

Open test benches expose components to electrostatic discharge risks that enclosed cases mitigate. Working on a grounded surface and using an anti-static wrist strap protects your hardware. Some technicians add conductive mats beneath their test benches for additional protection.

The metal frames themselves provide some grounding through the power supply connection, but you should never rely on this alone. Static buildup on carpets, clothing, and dry environments poses real danger to exposed components.

Cooling and Airflow

Open-frame designs naturally provide excellent airflow since no panels restrict convection. However, organized fan placement still matters for directed cooling. Consider how you will position intake and exhaust fans, and whether you need PWM fan extension cables to reach optimal positions.

Water cooling enthusiasts should prioritize trays with radiator mounting points. Budget steel trays rarely include these, while premium aluminum frames often support 240mm or larger radiators.

Power Supply Compatibility

Most trays support standard ATX power supplies (150x86x140-250mm), but mounting quality varies significantly. Some trays only secure the PSU with one screw, creating wobble. Check reviews specifically mentioning PSU mounting before purchasing.

SFX power supplies require compatible brackets on some trays. If you plan to use a compact SFX unit, verify the product explicitly supports this form factor.

Cable Management

Open test benches cannot hide cables like traditional cases, making organization critical for both aesthetics and accessibility. Trays with hollow bases or cable routing channels help keep power and data cables tidy.

Consider adding dedicated cable management accessories like velcro straps, cable combs, and adhesive mounts. A clean workspace reduces the risk of accidentally disconnecting cables during testing.

DIY and Budget Alternatives

Before purchasing a commercial tray, consider creative alternatives. Server pull trays from decommissioned Dell PowerEdge or HP ProLiant systems often sell for under $15 and include integrated mounting points. Some enthusiasts 3D print custom trays when commercial options do not fit specific needs.

Wood and HDPE cutting boards make inexpensive temporary test surfaces for occasional use. While lacking the rigidity and mounting options of dedicated trays, they cost a fraction of the price and work fine for basic component testing.

Assembly and Setup Tips

Before assembly, verify all hardware is present and sort screws by size. Apply gentle pressure when threading standoffs to avoid stripping holes with paint residue. Add rubber feet immediately to protect your work surface.

Test-fit your motherboard before fully tightening any screws. Standoff positioning mistakes are easier to correct early in the build process. Keep a small container nearby for loose screws during assembly.

Frequently Asked Questions

Final Thoughts

Finding the best motherboard trays for PC test benches comes down to matching your specific needs with the right combination of size, build quality, and features. For most users, the ALAMENGDA E-ATX Test Bench offers the best overall balance with full form factor support and versatile mounting options. Budget-conscious builders should look at the ALAMENGDA ATX tray, while water cooling enthusiasts will appreciate the premium egowz aluminum frames.

Consider how often you will swap components, what motherboard sizes you work with, and whether water cooling support matters for your use case. A test bench is an investment in your hardware testing workflow, and choosing the right one saves frustration down the line.