The technical data of the Q300L …
| Dimensions (WxHxD) | 230 x 378 x 387 mm |
| Mainboard | Micro ATX and mini ITX |
| PCI-slots | 4 |
| CPU cooler | up to 157mm high |
| Graphic card | up to 360mm |
| Power supply | up to ATX |
| Drives 5.25″ | 0 |
| Drives 3.5″ | 1 |
| Drives 2.5″ | 2 |
| Fans front | 2x120mm or 2x140mm |
| Fans top | 2x120mm |
| Fans bottom | 1x120mm |
| Fans back | 1x120mm |
| Watercooling | front 120-240mm, back 120mm possible |
| Weight | 3.7kg |
The technical data of the Q300P …
| Dimensions (WxHxD) | 230 x 450 x 450 mm |
| Mainboard | Micro ATX and mini ITX |
| PCI-slots | 4 |
| CPU cooler | up to 157mm high |
| Graphic card | up to 360mm |
| Power Supply | up to ATX |
| Drives 5.25″ | 0 |
| Drives 3.5″ | 1 |
| Drives 2.5″ | 2 |
| Fans front | 2x120mm or 2x140mm |
| Fans top | 2x120mm |
| Fans bottom | 1x120mm |
| Fans back | 1x120mm |
| Watercooling | front 120-240mm, back 120mm possible |
| Weight | 5.2kg |
Cooler Master MasterBox Q300L / Q300P construction, design and features …