PC Midi Tower Cooler Master MasterFrame 600 Mesh — Black, supports ATX/EATX, 2x200mm front fans, front/side fan support, 2x3.5 inch + 3x2.5 inch bays

Premium modular ATX case MasterFrame 600 Mesh is an open-frame mid-tower chassis engineered for high-performance hardware, extreme cooling and full customization via the FreeForm 2.0 platform. The design supports motherboard sizes from ATX to E-ATX and provides access to modular design files so builders can adapt and expand the chassis for different configurations.

Advantages

The exposed exo-structure increases adaptability and allows flexible layouts for air or liquid cooling. The case supports a wide range of motherboard form factors from Mini-ITX up to E-ATX, enabling diverse builds. It accommodates large GPUs up to 485 mm and includes a GPU support bracket to prevent sag and keep the build stable. Tool-free panel removal simplifies access for upgrades and maintenance. Open-source panels and interchangeable components make the chassis suitable for customization and maker-driven modifications.

Key specifications

• Form factor: mid-tower open-frame (supports Mini-ITX to E-ATX, including ATX, microATX, Mini-DTX, SSI CEB)
• Cooling support: up to eleven fans and multiple radiator sizes (supports triple 360 mm radiators and up to 420 mm where applicable)
• Included fans: rear SickleFlow 120 ARGB PWM; front dual SickleFlow 200 ARGB PWM
• GPU clearance: up to 485 mm; includes GPU support bracket
• Drive bays: 3 × 2.5" bays, 2 × 3.5" bays (2.5"/3.5" HDD/SSD combo cage)
• Side panel: tempered glass with side window illumination; multi tempered glass panels available
• Front I/O: USB 3.2 Type-C
• Materials: aluminium, SGCC steel, tempered glass
• Filters: anti-dust filter
• Color: black

How to use

Plan your build by selecting a compatible motherboard (Mini-ITX to E-ATX) and verify GPU and radiator dimensions against the 485 mm GPU clearance and supported radiator sizes. Install power supply, motherboard and drives following the included mounting points; use the tool-free panels for quick access during assembly. Fit fans and radiators according to your cooling preference—air or liquid—and secure the GPU with the supplied support bracket to prevent sag. Connect front I/O including USB 3.2 Type-C, and route cables through the frame openings to keep airflow unobstructed.

Recommendations

For optimal cooling performance, plan radiator and fan placement before final component installation and ensure sufficient clearance for radiators up to 420 mm. Use the included GPU support bracket for large graphics cards and consult FreeForm 2.0 resources for compatible modular parts if you plan custom panel or bracket modifications.