LIAN LI B4-mATX Mesh – Compact Micro-ATX Case
- Compact Micro-ATX / Mini-ITX Case
- 21.3L Small Form Factor Design
- Mesh Front Panel
- Supports GPUs up to 358mm
- CPU Cooler Height up to 162mm
- Supports ATX / SFX PSUs up to 140mm
- Up to 360mm Radiator Support with SFX PSU
- 2 × 120mm Slim Fans Included
- Horizontal & Vertical Layout Support
- Warranty: 1 Year
3,899EGP
1 in stock
1 in stock
Description
The LIAN LI B4-mATX Mesh is a compact 21.3-liter small form factor PC case designed for Micro-ATX and Mini-ITX systems. Co-developed with DAN Cases, it combines a space-efficient chassis with strong hardware compatibility and flexible cooling options.
The mesh front panel provides an airflow-focused design while maintaining a clean and compact appearance. The B4-mATX supports both horizontal and vertical orientations, allowing users to adapt the case to different desk setups.
Despite its compact size, the B4-mATX supports graphics cards up to 358mm in length and CPU air coolers up to 162mm in height. Without the side fan bracket installed, CPU cooler clearance increases to 168mm.
The case supports both ATX PSUs up to 140mm and SFX power supplies. Using an SFX PSU also unlocks additional cooling and radiator configurations, including support for radiators up to 360mm.
Two 120 × 120 × 15mm slim fans are pre-installed at the top of the case. Depending on the selected PSU configuration, the B4-mATX can support additional 120mm or 140mm fans on the side and bottom, with additional rear and front fan support.
For storage, the B4-mATX provides mounting for one 2.5-inch SSD at the front and either one 3.5-inch HDD or one additional 2.5-inch SSD at the bottom.
The front I/O panel includes two USB 3.0 Type-A ports, one USB 3.2 Type-C port, an audio port, and a power button, providing convenient access to commonly used peripherals.
Key Features
- 21.3-liter compact Micro-ATX chassis
- Micro-ATX and Mini-ITX motherboard support
- Mesh front panel for airflow
- Horizontal and vertical installation options
- Up to 358mm GPU clearance
- Up to 162mm CPU cooler clearance
- 168mm CPU cooler clearance without side fan bracket
- ATX PSU up to 140mm or SFX PSU support
- Up to 360mm radiator support with SFX PSU
- Two pre-installed 120mm × 15mm slim fans
- Up to 9 fans supported depending on configuration
- 2.5-inch SSD and 3.5-inch HDD storage support
- USB 3.2 Type-C front I/O
Technical Specifications
| Feature | Details |
|---|---|
| Product Name | LIAN LI B4-mATX Mesh |
| Brand | LIAN LI |
| Model | B4X / B4W |
| Case Type | Small Form Factor Micro-ATX Case |
| Case Volume | 21.3L |
| Material | Steel |
| Front Panel | Mesh |
| Motherboard Support | Micro-ATX / Mini-ITX |
| Back-Connect Motherboards | Not Supported |
| GPU Length Clearance | Up to 358mm |
| GPU Thickness | Up to 4 Slots |
| CPU Cooler Height | Up to 162mm |
| CPU Cooler Height Without Side Fan Bracket | Up to 168mm |
| PSU Support | ATX up to 140mm / SFX |
| Radiator Support with SFX PSU | 360mm / 280mm / 240mm |
| Radiator Support with ATX PSU | 240mm |
| Top Fan Support | 2 × 120mm |
| Side Fan Support with SFX PSU | 3 × 120mm / 2 × 140mm |
| Side Fan Support with ATX PSU | 2 × 120mm |
| Front Fan Support | 1 × 120mm Slim Fan with SFX PSU Only |
| Bottom Fan Support | 3 × 120mm / 2 × 140mm |
| Rear Fan Support | 1 × 120mm |
| Included Fans | 2 × 120 × 120 × 15mm Slim Fans |
| Storage Support | Front: 1 × 2.5″ SSD / Bottom: 1 × 3.5″ HDD or 1 × 2.5″ SSD |
| Dust Filter | 1 × Magnetic Bottom Filter |
| I/O Ports | 2 × USB 3.0 Type-A, 1 × USB 3.2 Type-C, 1 × Audio, 1 × Power Button |
| Dimensions (D × W × H) | 420 × 191 × 288mm |
| Orientation | Horizontal / Vertical |
| Color | Black / White |
| Warranty | 1 Year |







