Product Overview – Cooler Master MasterBox Q300L Micro ATX PC Case
The Cooler Master MasterBox Q300L Mini Tower PC Case is a compact and versatile computer chassis designed for users who want a stylish, space-saving, and efficient solution for building a desktop PC. With support for Micro ATX and Mini ITX motherboards, this case is ideal for gaming PCs, office computers, home systems, and custom PC builds.
Featuring a modern compact design with an edge-to-edge transparent acrylic side panel, the MasterBox Q300L allows users to showcase their internal components while maintaining a clean and professional appearance. Its modular design allows flexible placement of the I/O panel, providing multiple positioning options based on your preferred setup.
The Q300L is designed with excellent airflow in mind, featuring perforated front, top, and bottom panels along with dust filtering to improve cooling performance and protect internal components. It supports multiple fan configurations, including front, top, rear, and bottom fan placements, as well as radiator support for liquid cooling setups.
Despite its compact size, the case provides enough space for powerful components, supporting graphics cards up to 360mm, CPU coolers up to 157mm, and standard ATX power supplies up to 160mm in length.
Key Features:
- Compact Micro ATX / Mini ITX mini tower design
- Transparent acrylic side panel for showcasing components
- Excellent airflow with ventilated front, top, and bottom panels
- Magnetic dust filter for easier maintenance
- Flexible I/O panel positioning
- Supports multiple cooling fans and liquid cooling radiators
- Clean cable management space behind motherboard tray
- Stylish design for gaming and professional builds
Technical Specifications:
- Brand: Cooler Master
- Model: MasterBox Q300L
- Case Type: Mini Tower
- Motherboard Support: Micro ATX, Mini ITX
- Material: Steel & Plastic
- Front Ports: 2 × USB 3.0, Audio In/Out
- Expansion Slots: 4
- Drive Bays:
- GPU Support: Up to 360mm
- CPU Cooler Height: Up to 157mm
- PSU Support: ATX PSU up to 160mm
- Side Panel: Transparent Acrylic Window
- Cooling Support:
- Front: Up to 2 × 120/140mm Fans
- Top: Up to 2 × 120mm Fans
- Rear: 1 × 120mm Fan
- Radiator Support: Up to 240mm Front
Ideal Use:
- Gaming PC builds
- Home desktop computers
- Office and business systems
- Compact workstation setups
- Custom PC enthusiasts
- Budget-friendly performance builds
