Lian Li DAN Cases B4 Wood Edition PC Case, Micro-ATX - Walnut, Black

The Lian Li x DAN Case B4 Micro-ATX offers extensive hardware support in a compact 21.3-litre format. It is ideal for builds requiring little space but that don’t want to be typical mini-PC solutions. A Micro-ATX motherboard, long graphics card, ATX or SFX power supply, and flexible cooling options fit into a case that can be positioned vertically or horizontally. The Wooden Edition combines aluminium mesh panels with a front made of genuine walnut wood.

• Compact SFF format: 21.3 litres volume with Micro-ATX support
• Plenty of space for GPUs: Graphics cards up to 358 mm supported
• Flexible PSU choice: Dedicated mounts for ATX and SFX power supplies
• Airflow layout: Two addressable 120 mm fans pre-installed
• Versatile positioning: Usable horizontally or vertically

Lian Li x DAN B4 Micro-ATX Case: 21.3 litres volume with extensive hardware support

The Lian Li x DAN B4 uses its 21.3-litre volume efficiently. It supports Micro-ATX motherboards, graphics cards up to 358 mm in length, and CPU coolers up to 166.5 mm in height. This makes the case suitable for compact gaming and workstation systems that require more than basic hardware.

ATX or SFX: Power supply choice tailored to cooling

Depending on your cooling configuration, you can install an ATX power supply up to 140 mm or an SFX power supply. Separate mounts are provided for both options, allowing you to optimise the case either for maximum compatibility or for more space for water cooling.

The power connection is prepared for different case orientations. The rotatable AC connector simplifies cable management: in horizontal use, it faces outward; in vertical use, excess cable length can be stored inside the case.

Cooling in the Lian Li x DAN B4: Flexible planning for air and water cooling

• 2x 120 mm fans pre-installed
• Front fan can be used as intake when combined with air coolers
• Radiator support up to 360 mm with SFX power supply or up to 140 mm with ATX power supply

The B4 offers multiple options for air and water cooling. Two 120 mm fans are already installed. Additionally, you can install 120 mm fans at the bottom and front. The front fan is mounted on a removable bracket and can be oriented as intake when using an air cooler.

Radiator support depending on power supply configuration

For water cooling, available space depends on the power supply choice. With an SFX power supply, you can install a 360 mm radiator. With an ATX power supply, a 140 mm radiator is possible. This allows you to tailor the case for air cooling, compact AiO solutions, or more radiator surface area.

Black Walnut Edition: Mesh, steel frame, and genuine walnut wood

The combination of mesh, steel, and walnut wood creates a premium appearance without compromising function. The B4 m-ATX remains focused on airflow and optimal cooling of your hardware in both orientations—whether lying flat or standing on your desk.