Open-air PC test benches are built for builders who value accessibility, airflow, and rapid hardware changes over traditional enclosed cases.
They’re ideal for benchmarking, troubleshooting, custom loops, and frequent component swaps, offering an unobstructed layout that makes every part easy to reach and cool.
The right test bench balances rigidity, compatibility, and cable management while providing a stable platform for high-performance builds and hands-on experimentation.
| DIY PC Test Bench Open Chassis Case Rack for ATX ITX Motherboards |
| Best Open-Air Design | Form Factor Support: ATX, Micro ATX, ITX | Open Frame / Open Air: Open chassis case rack | Motherboard Compatibility Range: 305 x 245 mm | VIEW LATEST PRICE | Read Our Analysis |
| ATX Matx ITX PC Test Bench Stand and Frame |
| Modular Frame Stand | Form Factor Support: ATX, MATX, ITX | Open Frame / Open Air: Open Frame | Motherboard Compatibility Range: up to 12×9.6 in (30.5×24.4 cm) | VIEW LATEST PRICE | Read Our Analysis |
| DIY PC Test Bench Open Air Case Rack |
| DIY Enthusiast Pick | Form Factor Support: ATX, Micro ATX, ITX | Open Frame / Open Air: Open Air Case Rack | Motherboard Compatibility Range: 305 x 245 mm | VIEW LATEST PRICE | Read Our Analysis |
| JOYJOM Open Air ATX PC Case Aluminum Frame |
| Premium Open Air | Form Factor Support: ATX, Micro ATX, ITX | Open Frame / Open Air: Open Air PC Case | Motherboard Compatibility Range: up to 305 x 245 mm | VIEW LATEST PRICE | Read Our Analysis |
| Open Air PC Case Open Frame Techbench Server Rack |
| Stackable Workstation | Form Factor Support: ATX, MATX, ITX | Open Frame / Open Air: Open Air PC Case | Motherboard Compatibility Range: max 330 × 330 mm | VIEW LATEST PRICE | Read Our Analysis |
| Open Air PC Test Bench ATX/ITX Case chassis |
| Universal Compatibility | Form Factor Support: EATX, ATX, Micro ATX, ITX | Open Frame / Open Air: Open Air PC Case Chassis | Motherboard Compatibility Range: max 305 x 330 mm | VIEW LATEST PRICE | Read Our Analysis |
| Open Air PC Test Bench Case for GPU Mining Rig Frame |
| GPU Mining Ready | Form Factor Support: ITX, M-ATX, ATX | Open Frame / Open Air: Open Air Test Bench | Motherboard Compatibility Range: up to 265 mm GPU, ITX/M-ATX/ATX boards | VIEW LATEST PRICE | Read Our Analysis |
| Open Frame PC Test Bench ATX Case (Black) |
| Portable Open Frame | Form Factor Support: ITX, MATX, ATX | Open Frame / Open Air: Open Frame / Open Frame PC Case | Motherboard Compatibility Range: up to 305 x 245 mm | VIEW LATEST PRICE | Read Our Analysis |
| Open Air PC Frame Test Bench for ITX/ATX EATX |
| Flexible Cooling | Form Factor Support: EATX, ATX, MATX, ITX | Open Frame / Open Air: Open Frame Test Bench | Motherboard Compatibility Range: standard supported boards (ITX/ATX/MATX/EATX) with PCIe options | VIEW LATEST PRICE | Read Our Analysis |
| Open Air PC Case Test Bench for ATX Micro ATX Motherboards |
| Server-Grade Stackability | Form Factor Support: ATX, MATX, ITX, X79/X99 variants | Open Frame / Open Air: Open Air / Open Frame | Motherboard Compatibility Range: max 330 × 330 mm | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
DIY PC Test Bench Open Chassis Case Rack for ATX ITX Motherboards
The DIY PC Test Bench Open Chassis Case Rack is ideal for testers who need compatibility with ATX, Micro ATX, and ITX boards, because it directly supports boards up to 305 x 245 mm and adapts to different motherboard sizes. You set up the open chassis by placing the board on the rack, securing it with appropriate screws, and confirming fit for ATX, Micro ATX, or ITX. Check cooling options, using the wide body for heat dissipation. Verify PSU compatibility with standard ATX units, 140–250 mm length. Ensure cable routing remains clear, then test component seating and airflow.
- Form Factor Support:ATX, Micro ATX, ITX
- Open Frame / Open Air:Open chassis case rack
- Motherboard Compatibility Range:305 x 245 mm
- GPU Card Length Support:Not limited by length/width
- Power Supply Compatibility:Standard ATX (140–250 mm)
- Cooling Options:Air cooling up to multiple 120 mm fans; water cooling not specified
- Additional Feature:Widely body heat dissipation design
- Additional Feature:SSD motherboards accessories
- Additional Feature:Open chassis heat management
ATX Matx ITX PC Test Bench Stand and Frame
For a versatile open-frame setup, this ATX Matx ITX PC Test Bench Stand and Frame stands out by supporting ATX, MATX, and ITX motherboards up to 12×9.6 inches, making it a flexible choice for mixed builds. You can mount standard large power supplies or swap in an SFX fixture, depending on space. The frame supports 2.5″ and 3.5″ drives, giving you storage options in testing setups. It accepts water cooling with radiators 120, 240, or 360, and is wall-mount capable for compact spaces. Use the included wall-mount kit, lamp, and keys to organize and power tests efficiently.
- Form Factor Support:ATX, MATX, ITX
- Open Frame / Open Air:Open Frame
- Motherboard Compatibility Range:up to 12×9.6 in (30.5×24.4 cm)
- GPU Card Length Support:Not specified (typical open frame allowance)
- Power Supply Compatibility:Standard ATX (SFX fixture optional)
- Cooling Options:Supports multiple radiators (120/240/360)
- Additional Feature:Aluminum frame
- Additional Feature:Wall-mount capable
- Additional Feature:Water cooling ready
DIY PC Test Bench Open Air Case Rack
Looking for a versatile open-air setup that supports ATX, Micro ATX, and ITX boards without crowding the space? This DIY PC Test Bench Open Air Case Rack is built from 0.8mm SPCC steel with baked black sand grain paint for durability. It fits boards up to 305 x 245 mm and supports ATX, Micro ATX, and ITX form factors. It uses an open chassis design for wide heat dissipation and easy access. It accommodates standard ATX power supplies (150 x 86 mm, adjustable 140–250 mm) and adapts layout to the motherboard. Follow steps to install, configure airflow, and secure components.
- Form Factor Support:ATX, Micro ATX, ITX
- Open Frame / Open Air:Open Air Case Rack
- Motherboard Compatibility Range:305 x 245 mm
- GPU Card Length Support:Not limited by length/width
- Power Supply Compatibility:Standard ATX (140–250 mm)
- Cooling Options:Air cooling; water cooling larger options not specified
- Additional Feature:SSD motherboards accessories
- Additional Feature:Open chassis design
- Additional Feature:Wide motherboard support
JOYJOM Open Air ATX PC Case Aluminum Frame
Choose the JOYJOM Open Air ATX PC Case Aluminum Frame when you need a compact, open-frame setup that fits ATX, Micro ATX, and ITX boards without enclosure walls. You get a black 0.8mm SPCC frame with a sandblasted coating, ready for DIY assembly. Check compatibility: supports boards up to 305 x 245 mm, and standard ATX PSUs (150 x 86 x 140–250 mm). It holds 1 HDD or SSD and measures 440 x 265 x 128 mm. Install easy: place motherboard, secure with screws, add power supply, mount drive, and connect cables. Weight is 2.53 pounds; warranty follows Amazon policy.
- Form Factor Support:ATX, Micro ATX, ITX
- Open Frame / Open Air:Open Air PC Case
- Motherboard Compatibility Range:up to 305 x 245 mm
- GPU Card Length Support:Not limited
- Power Supply Compatibility:Standard ATX (140–250 mm)
- Cooling Options:Air cooling; water cooling not specified
- Additional Feature:Packaged with accessories
- Additional Feature:0.8mm SPCC material
- Additional Feature:Open frame portability
Open Air PC Case Open Frame Techbench Server Rack
Open Air PC Case Open Frame Techbench Server Rack stands out if you’re building a scalable workstation or small server setup, because it supports stacking up to 10 units in horizontal mode and accommodates ATX, MATX, ITX, and even EATX motherboards. You assemble it as a PC test bench, using 1.5mm SPCC panels and a 0.8mm base plate for rigidity. Plan space for up to 8 fans or a 360mm water loop, plus room for 2 HDDs and 3 SSDs. Check motherboard compatibility, then position a 165mm CPU cooler, and fit cards up to 335mm. Ensure ATX PSU fits, then secure with included hardware.
- Form Factor Support:ATX, MATX, ITX
- Open Frame / Open Air:Open Air PC Case
- Motherboard Compatibility Range:max 330 × 330 mm
- GPU Card Length Support:GPU length up to 310–335 mm (depending on variant)
- Power Supply Compatibility:ATX up to 300 mm
- Cooling Options:Air and multiple water cooling options (various radiators)
- Additional Feature:Stackable up to 10 units
- Additional Feature:1 HDD + 3 SSD support
- Additional Feature:360 mm water cooling option
Open Air PC Test Bench ATX/ITX Case chassis
This ATX/ITX Open Air PC Test Bench is ideal if you need a versatile chassis that fits EATX through ITX motherboards while maximizing airflow. You set up a motherboard by confirming size support: EATX, ATX, Micro ATX, or ITX, up to 305 x 330 mm. Install a standard ATX power supply within 150 x 86 x (140–250) mm. Add storage for 2 HDDs and 2 SSDs. The assembled unit measures 440 x 345 x 128 mm; with power, 440 x 345 x 160 mm. Constructed from 0.8 mm SPCC with black sandblasted paint. Pack includes one open frame chassis and accessories.
- Form Factor Support:EATX, ATX, Micro ATX, ITX
- Open Frame / Open Air:Open Air PC Case Chassis
- Motherboard Compatibility Range:max 305 x 330 mm
- GPU Card Length Support:GPU length up to 310 mm (internal) or 335 mm (external)
- Power Supply Compatibility:ATX up to 250 mm (arrangements with PSU)
- Cooling Options:Air cooling up to 8×120 mm; water cooling options
- Additional Feature:EATX/ITX/MATX/ATX support
- Additional Feature:2 HDDs and 2 SSDs
- Additional Feature:440 mm major footprint
Open Air PC Test Bench Case for GPU Mining Rig Frame
This Open Air PC Test Bench Case for GPU Mining Rig Frame stands out for its portable, open-air design and sturdy 1 mm steel frame, making it ideal for portable vertical GPU setups and easy access during testing. You set it up with ITX, M-ATX, or ATX motherboards and an ATX PSU. Install in horizontal or vertical orientation and choose airflow direction. GPU length up to 265 mm, any height, with room for a 360 mm radiator. Supports 2 HDDs. Use this as an open air test bench or DIY case for X79/X99 platforms, adjusting positioning as needed.
- Form Factor Support:ITX, M-ATX, ATX
- Open Frame / Open Air:Open Air Test Bench
- Motherboard Compatibility Range:up to 265 mm GPU, ITX/M-ATX/ATX boards
- GPU Card Length Support:GPU length up to 265 mm
- Power Supply Compatibility:ATX PSU
- Cooling Options:Water cooling support up to 360 mm
- Additional Feature:Mining frame compatibility
- Additional Feature:Horizontal or vertical orientation
- Additional Feature:265 mm GPU length
Open Frame PC Test Bench ATX Case (Black)
If you’re building or testing with an open-frame setup, this Open Frame PC Test Bench ATX Case (Black) stands out for its compatibility and easy access. You’ll note its zinc-coated steel shell and black baked finish, giving durability and matching appeal. The open chassis design allows quick assembly and improves heat dissipation. It supports ITX, MATX, and ATX motherboards, with overall dimensions 11.02 x 6.49 x 20.43 inches. Use the independent multifunction panel to power on, and connect USB 3.0, USB 2.0, audio, and Type-C. Place the unit on stable bottom foot pads for steadiness.
- Form Factor Support:ITX, MATX, ATX
- Open Frame / Open Air:Open Frame / Open Frame PC Case
- Motherboard Compatibility Range:up to 305 x 245 mm
- GPU Card Length Support:Not limited
- Power Supply Compatibility:Not specifically restricted; standard ATX implied
- Cooling Options:Air/open frame; cooling not specified in detail
- Additional Feature:USB 3.0 / USB 2.0 / Type-C
- Additional Feature:Zinc coated steel
- Additional Feature:Open chassis layout
Open Air PC Frame Test Bench for ITX/ATX EATX
The Open Air PC Frame Test Bench for ITX/ATX EATX stands out for its flexible motherboard support, allowing you to mount EATX, ATX, MATX, and ITX boards in a single frame. You can equip MATX, ATX, and EATX boards with two PCIE interfaces by default, and adjust as needed for other configurations. If you install a graphics card vertically, use the optional extension cables. For cooling, the open design aids heat dissipation and supports up to two water-cooling installations, with the water cooling position adjustable via the detachable handle. Use aluminum alloy frame, ensure airflow is unobstructed, and verify GPU length.
- Form Factor Support:EATX, ATX, MATX, ITX
- Open Frame / Open Air:Open Frame Test Bench
- Motherboard Compatibility Range:standard supported boards (ITX/ATX/MATX/EATX) with PCIe options
- GPU Card Length Support:GPUs can be installed horizontally; vertical requires extensions
- Power Supply Compatibility:ATX and SFX options
- Cooling Options:Open frame with water cooling support (up to 2 WC installations)
- Additional Feature:Dual PCIe expansion options
- Additional Feature:Vertical/horizontal install with extensions
- Additional Feature:Aluminum alloy construction
Open Air PC Case Test Bench for ATX Micro ATX Motherboards
For ATX and Micro ATX builds, this Open Air PC Test Bench is the best choice when you need a sturdy, stackable setup that maximizes airflow and flexibility. You install it as an open frame chassis, place ATX, MATX, or ITX boards, and secure panels with the 1.5 mm SPCC construction. It supports horizontal and vertical placement and stacks up to 10 units in horizontal mode. Use the 435 x 340 x 195 mm frame, fit up to 310 mm GPUs, and up to 165 mm CPU coolers. Add 2 HDDs and 3 SSDs, plus 1 × 360 mm water cooling or multiple fans.
- Form Factor Support:ATX, MATX, ITX, X79/X99 variants
- Open Frame / Open Air:Open Air / Open Frame
- Motherboard Compatibility Range:max 330 × 330 mm
- GPU Card Length Support:GPU length up to 310 mm (internal) or 335 mm (external)
- Power Supply Compatibility:ATX up to 300 mm
- Cooling Options:Air cooling up to 8×120 mm; water cooling options
- Additional Feature:Stackable 10-unit rack
- Additional Feature:330 × 330 mm max board area
- Additional Feature:300 mm ATX PSU support
Factors to Consider When Choosing Open Air PC Test Bench
First, assess compatibility by checking motherboard size, RAM clearance, and I/O access to ensure the bench fits your setup. Next, evaluate cooling potential by confirming space for fans or radiators, airflow paths, and heat dissipation options, with examples like 120mm fans or open-top airflow ramps. Finally, consider build robustness, expansion options, and size/weight to match your workspace, noting how configurable shelves, accessory mounts, and portability affect daily use.
Compatibility Span
Are you evaluating compatibility spans to choose the right open air PC test bench? Start by checking supported motherboard sizes. Many benches handle ATX, MATX, and ITX, with some models also accepting EATX or larger layouts. Note the maximum board dimensions, typically around 305 x 245 mm to 330 x 330 mm, and ensure your board fits within those limits. Next, verify power supply compatibility, focusing on ATX units within about 150 x 86 mm to 140–250 mm in length. For GPU length, look for bands around 310–335 mm in some designs, depending on airflow and radiator placement. Finally, confirm orientation options and radiator or water-cooling availability, as these affect layout and component clearance.
Cooling Potential
Cooling performance on an open air test bench depends on how you manage airflow and available radiator options. Start by evaluating radiator support. Look for models that list 120/240/360 mm options to maximize liquid cooling potential. If you plan liquid cooling, ensure the bench can accommodate up to 8 × 120 mm fans for strong convection and heat removal from multiple GPUs. Consider orientation, as vertical or horizontal setups change airflow paths and cooling effectiveness; choose the orientation that aligns fans with the hottest components. Open frame designs help by reducing obstructions around components, making fan and radiator placement easier and more efficient. Finally, confirm that the bench allows easy tubing routing and radiator mounting for a clean, efficient cooling layout.
Build Robustness
Choosing an open air PC test bench hinges on how it handles rigidity and load, so start by checking frame materials and construction. Examine frame thickness and material variety, from 0.8 mm SPCC to 1.0–1.5 mm SPCC, plus coatings such as sandblasted or baked black for rigidity and corrosion resistance. Verify rigid mounting brackets and base plates that support EATX, ATX, or MITX motherboards without flex. Consider maximum motherboard sizes, up to 305 × 245 mm for ITX/Micro ATX or 330 × 330 mm for EATX/ATX variants, since larger boards demand sturdier frames. Review weight and footprint, noting 17–18 inch sizes and 2.5–2.8 lb units, ensuring stable transport and orientation. Confirm cooling options, up to 8×120 mm fans or multiple radiators, to prevent warping under load.
Expansion Options
Expansion options are shaped by how you can stretch and adapt the bench to your needs. First, check motherboard support: ensure it fits ATX, MATX, and ITX boards up to 165 mm cooler height, so your components aren’t blocked. Next, assess orientation options: confirm the design supports horizontal or vertical mounting, and whether it’s stackable for future expansion. Then evaluate GPU clearance: verify available space ranges from 265 to 335 mm, depending on the model, to accommodate your graphics card. Next, review interior space: confirm room for 2–3 drives (2.5″/3.5″) and a power supply up to 300 mm. Finally, consider cooling flexibility: ensure support for up to 360 mm radiators and multiple fan placements, up to 8×120 mm, to match your cooling plan.
Size & Weight
Start by noting the overall footprint and weight fit for your workspace, since size and heft determine where you can place the bench and how portable it is. Open air benches vary in assembled dimensions, from about 440 × 345 × 128 mm to 435 × 340 × 195 mm, so measure your desk or rack space first. Weight ranges from roughly 2.5 pounds up to heavier builds due to steel thickness, which affects portability and handling. Check maximum motherboard support, usually around 305 × 245 mm, to ensure your components fit without clearance issues. Consider whether you prefer stackable or horizontal layouts, as taller configurations change available space. Balance width, height, and GPU length allowances (310–335 mm) with cooler clearance for reliable airflow and access.
Access & Setup
Open air test benches should give you easy, flexible access to your components, so start by checking how you can mount the motherboard and where you’ll reach it most often. Look for support of ATX, MATX, and ITX form factors to ensure compatibility with your parts. Decide on vertical or horizontal installation, and note if the design is stackable or wall-mount capable to fit your workspace. Check drive access with space for 2.5″ and 3.5″ drives and configurable mounts for SSDs and HDDs. Verify I/O and power controls are accessible from the front or a panel, including USB, audio, and Type-C ports. Confirm power supply compatibility and maximum length to avoid clearance issues. Ensure straightforward cable management and labeling for quick setup.
Final Thoughts
You’ve reviewed solid options for open air PC test benches. Start by listing your motherboard size (ATX, MATX, ITX) and GPU clearance needs, then match frames to those specs. Consider weight, height, and access for drives, IO, and cooling. Decide between wall-mount, stackable, or free-standing setups, and check rail or screw compatibility for components. Finally, choose finish (black or aluminum) and budget, then follow assembly steps step by step to complete your bench.
Meet Ry, “TechGuru,” a 36-year-old technology enthusiast with a deep passion for tech innovations. With extensive experience, he specializes in gaming hardware and software, and has expertise in gadgets, custom PCs, and audio.
Besides writing about tech and reviewing new products, he enjoys traveling, hiking, and photography. Committed to keeping up with the latest industry trends, he aims to guide readers in making informed tech decisions.