| Product Name | MasterBox Q300L | |
| Product Number | MCB-Q300L-KANN-S00 | |
| Available Color | Black | |
| Materials | Steel, Plastic | |
| Dimensions (LxWxH) | 387 x 230 x 378mm | |
| Motherboard Support | Micro-ATX, Mini-ITX | |
| Expansion Slots | 4 | |
| Drive Bays | 5.25" | 0 |
| 3.5" HDD | 1 | |
| 2.5" SSD | 2 | |
| I/O Port | USB 3.0 x 2, Audio In / Out | |
| Pre-installed Fan(s) | Front | N/A |
| Rear | 120mm x 1 | |
| Fan Support | Front | 120 / 140mm x 2 |
| Top | 120mm x 2 | |
| Rear | 120mm x 1 | |
| Bottom | 120mm x 1 | |
| Radiator Support | Front | 120mm x 1 / 240mm x 1 |
| Rear | 120mm x 1 | |
| Clearances | CPU Cooler | 157mm |
| PSU | 160mm | |
| GFX | 360mm | |
| Cable Routing | Behind MB Tray | 28mm |
| Dust Filters | Bottom | |
| Power Supply Support | Bottom mount, ATX PS2 | |
| EAN Code | 4719512065488 | |
| UPC Code | 884102038006 | |
