| Form factor | Tower |
| Type | PC |
| Product colour | Black |
| Supported motherboard form factors | micro ATX, Mini-ITX |
| Number of 3.5" bays | 2 |
| Number of 5.25" bays | 1 |
| Material | Plastic, Steel |
| Number of 2.5" bays | 2 |
| Number of expansion slots | 4 |
| Side window | N |
| Anti-dust filter | Y |
| Maximum CPU cooler height | 16.7 cm |
| Maximum graphics card length | 34.4 cm |
| Maximum PSU length | 32.5 cm |
| Power supply included | N |
| Power supply location | Bottom |
| Supported power supply form factors | ATX |
| USB 2.0 ports quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 1 |
| Audio input | Y |
| Audio output | Y |
| Number of front fans supported (max) | 2 |
| Front fans diameters supported | 120,140 mm |
| Number of rear fans supported (max) | 1 |
| Rear fans diameters supported | 120 mm |
| Top fans installed | 1x 120 mm |
| Number of top fans supported (max) | 1 |
| Top fans diameters supported | 120,140 mm |
| Front radiator fan sizes supported | 120,140,240,280 mm |
| Rear radiator fan sizes supported | 120 mm |
| Top radiator fan sizes supported | 120 mm |
| Supported HDD sizes | 2.5,3.5" |
| Width | 210 mm |
| Depth | 411 mm |
| Height | 410 mm |
| Weight | 5.2 kg |
| Package width | 278 mm |
| Package depth | 480 mm |
| Package height | 480 mm |
| Package weight | 6.2 kg |
| Volume | 33.26 L |
| Description |
| Cooler Master MasterBox MB400L. Form factor: Tower, Type: PC, Product colour: Black. Power supply location: Bottom, Supported power supply form factors: ATX. Front fans diameters supported: 120,140 mm, Rear fans diameters supported: 120 mm, Top fans installed: 1x 120 mm. Supported HDD sizes: 2.5,3.5". Width: 210 mm, Depth: 411 mm, Height: 410 mm |