Description


Features:
- Compact 21.3L mATX case with broad compatibility.
- Supports M-ATX / Mini-ITX, 358mm 4-slot GPUs, and 140mm ATX PSUs.
- Supports up to 360mm radiators with SFX PSU, or 240mm with ATX PSU.
- Up to 168mm CPU cooler clearance, or 162mm with side fan bracket.
- Includes 2 pre-installed 120 × 120 × 15mm slim top fans.
- Supports up to 9 fans across top, side, bottom, rear, and front.
- Removable top bracket simplifies CPU 8-pin routing and fan setup.
- Removable front bracket allows easier large GPU installation.
- Supports both horizontal and vertical layouts.
- Optional Vertical AeroDeck adds up to 3 × 120mm or 2 × 140mm fans for GPU cooling.
Specifications:
| Product Name | B4-mATX Mesh |
| Model No. | B4X (Black) / B4W (White) |
| Color | Black / White |
| Dimensions (D × W × H) | 420 × 191 × 288 mm |
| Material | Steel |
| Motherboard Support | Micro-ATX / Mini-ITX Back-Connect: No |
| Storage | Front: 1 × 2.5" SSD Bottom: 1 × 3.5" HDD or 1 × 2.5" SSD |
| GPU Length Clearance | 358 mm |
| CPU Cooler Height Clearance | 162 mm (168 mm without side fan bracket) |
| PSU Support | ATX (Up to 140 mm) / SFX |
| Radiator Support | Side (With SFX PSU): 360 / 280 / 240 mm Side (With ATX PSU): 240 mm |
| Fan Support | Top: 2 × 120 mm (Pre-installed) Side (With SFX PSU): 3 × 120 mm / 2 × 140 mm Side (With ATX PSU): 2 × 120 mm Front (SFX PSU Only): 1 × 120 mm Slim Fan Bottom: 3 × 120 mm / 2 × 140 mm Rear: 1 × 120 mm |
| Included Fans | Top: 2 × 120 × 120 × 15 mm |
| Dust Filter | Bottom: Magnetic Filter ×1 |

