Co-developed with DAN Cases, the Lian Li B4 Wood Mid Tower Case B4X-WD redefines what a compact mATX chassis can be. At just 21.3 liters and measuring 420 x 191 x 288 mm, this case blends refined materials and thoughtful engineering to deliver a premium look and surprising internal space. Choose between a clean, airflow-focused mesh front or a warm real wood panel to match your aesthetic — both options are crafted to maintain efficient front-to-back cooling while elevating your desk or living room setup. Whether you're building a high-performance small-form-factor workstation, a living-room gaming rig, or a stylish content-creation station, the B4X-WD offers flexibility, craftsmanship, and serious component compatibility in a compact footprint.
Benefits
- Exceptional compatibility in a compact package: The B4X-WD supports Micro-ATX and Mini-ITX motherboards while still accommodating up to 358 mm 4-slot GPUs and 140 mm ATX power supplies, letting you pack desktop-grade power into a space-conscious chassis.
- Flexible cooling options for every build: With support for up to 360 mm radiators when using an SFX PSU (or up to 240 mm with an ATX PSU), room for up to 9 fans across multiple mounting locations, and two pre-installed slim 120 × 120 × 15 mm top fans, you can balance silence and performance based on your needs.
- Modular design for easy assembly and upgrades: Removable top and front brackets simplify cable routing, CPU 8-pin access, fan installation, and large GPU fitting — reducing build time and making future upgrades or maintenance straightforward.
- Style that adapts to your environment: The wood-front option brings a refined, natural touch for home setups, while the mesh variant emphasizes a performance-oriented aesthetic. Both maintain a streamlined exterior without sacrificing airflow.
- True small-form-factor versatility: Supports both horizontal and vertical layouts and offers an optional Vertical AeroDeck accessory to boost GPU cooling, so you can configure the case to match your cooling strategy and visual preferences.
- Feature: Broad hardware support in a compact mATX chassis — compatible with Micro-ATX and Mini-ITX motherboards, up to 358 mm 4-slot GPUs, 140 mm ATX power supplies, and CPU coolers up to 168 mm (162 mm with side fan bracket), delivering desktop-class performance options in a 21.3 L body.
- Feature: Advanced radiator and fan compatibility — designed to accept up to a 360 mm radiator with an SFX PSU or 240 mm with an ATX PSU, plus support for up to nine fans mounted across the top, side, bottom, rear, and front for tailored airflow configurations.
- Feature: Thoughtful modularity and serviceability — removable top bracket improves CPU 8-pin routing and fan setup, while a removable front bracket enables easier installation of large GPUs and simplifies internal access during builds or upgrades.
- Feature: Dual aesthetic choices and premium materials — available with a refined real wood front panel or a performance-minded mesh front, all built on a durable steel structure finished in black for a sleek, timeless appearance.
- Feature: Front I/O and convenience — modern connectivity including USB 3.0 Type-A x2, USB 3.2 Type-C x1, a dedicated audio jack, and an easy-to-reach power button, plus two pre-installed slim top fans to get your system cooling right out of the box.
Key features
Summary
The Lian Li B4 Wood Mid Tower Case B4X-WD is a masterclass in compact, configurable design. It packs generous component support, advanced cooling flexibility, and user-friendly modular features into a refined 21.3 L Micro-ATX chassis. Choose the wood-front option for a warm, premium finish or the mesh front for an airflow-first look — either way you get a steel-built, black-finished case that adapts to horizontal or vertical orientations and accommodates demanding GPUs, robust cooling, and modern connectivity. For builders who refuse to compromise between style, space, and performance, the B4X-WD delivers a versatile foundation for standout small-form-factor systems.
| Manufacturer | Lian Li |
|---|---|
| Manufacturer Part | B4X-WD |
| UPC | 840353054738 |
| Case Type | MicroATX |
| Dimensions | 420 x 191 x 288mm |
| Motherboard Support | Micro ATX / Mini-ITX |
| Front Inputs | USB 3.0 Type A x 2 Power Button x 1 Audio x 1 USB 3.2 Type C x 1 |
| Material | Steel |
| Clear Side Panel | No |
| Manufacturer Warranty | Limited 1 Year |





