Cooler Master MasterBox Q300L Mini Tower Case – Compact, Versatile, and Feature-Rich
The Cooler Master MasterBox Q300L Mini Tower Case is designed for builders seeking a compact yet feature-rich PC case. Supporting both Micro-ATX and Mini-ITX motherboards, it offers flexibility for various build configurations.
Key Features:
- Supports Micro-ATX and Mini-ITX motherboards for versatile build options
- One 3.5″ HDD drive bay and two 2.5″ SSD drive bays for storage flexibility
- Four expansion slots for enhanced upgradeability
- I/O panel with two USB 3.0 ports and audio jacks, adjustable to six different locations
- Accommodates GPUs up to 14.2″ and CPU Coolers up to 6.2″ tall
- 1.1″ space behind the motherboard tray for effective cable management
The MasterBox Q300L is engineered to provide a seamless building experience. Its adjustable I/O panel can be positioned on either side in three different locations, offering convenience and flexibility. The case is designed to support larger GPUs and CPU coolers, making it suitable for a wide range of components.
With its focus on cable management, the Q300L features a dedicated space behind the motherboard tray. This allows for neat and organized cable routing, improving airflow and aesthetics within the case.
Ideal for builders looking for a compact, yet powerful PC case, the Cooler Master MasterBox Q300L combines functionality with a sleek design. Whether you’re building a home office PC or a compact gaming rig, this case provides the features and flexibility needed to create a high-performance system.


























