Compact and Versatile Design
The Cooler Master MasterBox Q300L is a micro-ATX case that provides great airflow, flexibility, and a unique aesthetic. Its customizable I/O panel and magnetic dust filter make it convenient for everyday use.
- Supports multiple cooling options
- Removable and washable dust filters
- Compact size for smaller workspaces
| Weight | 11.2 kg |
|---|---|
| Dimensions | 15.8 × 8.3 × 18.5 cm |
| Material | Steel, plastic |
| Form Factor | Micro-ATX |
| Cooling Support | Up to 6 fans |
| Color | Black |


Jake T. –
Very sturdy for the price! Perfect for my entry-level build.
Sarah L. –
I love the design and how easy it is to build in!
Tom P. –
Good case, but the cable management could be better.