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 that require little space but don’t want a typical mini-PC solution. 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 beech wood.
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 that require little space but don’t want a typical mini-PC solution. 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 aluminiu...
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 that require little space but don’t want a typical mini-PC solution. 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 aluminiu...
The Lian Li x DAN Case B4 Micro-ATX offers extensive hardware support in a compact 21.3-liter format. It is ideal for builds that require little space but don’t want a typical mini-PC solution. 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 aluminum mesh panels with a front made of genuine beech wood.
– Compact SFF format: 21.3 liters volume with Micro-ATX support
– Lots of room 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 Liters Volume with Extensive Hardware Support
Lian Li x DAN B4 Wooden Edition
The Lian Li x DAN B4 uses its 21.3-liter 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
Power supply mounts in the B4
Depending on your cooling configuration, you can install a 140 mm ATX power supply or an SFX power supply. Separate mounts are provided for both options. This allows you to configure the case either for maximum compatibility or for more space dedicated to water cooling.
The power input is prepared for various case orientations. The rotatable AC connector simplifies cable management: in horizontal use, it faces outward; in vertical use, excess cable length can be accommodated inside the case.
Position vertically or horizontally
The B4 can be used vertically or horizontally depending on your workspace and setup. For vertical installation, you can add the separately available Lian Li Vertical AeroDeck. It expands fan capacity and creates a direct airflow path to the graphics card.
– Cooling in the Lian Li x DAN B4: Flexible Air and Water Cooling Planning
– 2x 120mm fans pre-installed
– Front fan can be used as intake when combined with air coolers
– Radiator support up to 360 mm with SFX PSU or up to 140 mm with ATX PSU
– The B4 offers multiple options for air and water cooling. Two 120mm fans are already installed. Additionally, you can fit 120mm fans at the bottom and front. The front fan is mounted on a removable bracket and can be oriented as an intake when using an air cooler.
Radiator Support Depending on PSU Configuration
For water cooling, the available space depends on your power supply choice. With an SFX power supply, you can install a 360mm 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.
White Beech Edition: Mesh, Steel Frame, and Genuine Beech Wood
B4 White Beech Material Mix
The combination of mesh, steel, and beech wood creates a premium appearance without losing sight of functionality. The B4 m-ATX remains optimized for airflow and the best possible cooling of your hardware in both orientations—whether lying flat or standing on your desk.
Specifications
| Colour | |
|---|---|
| Primary Colour | White |
| Secondary Colour | Wood |
| Dimensions | |
| Length / Depth | 406.95 mm |
| Width | 191 mm |
| Height | 207.5 mm |
| Case | |
| Case Type | Mini Case |
| Motherboard Support | |
| Compatible Motherboard Formats | Micro-ATX |
| Max. Motherboard Format | Micro-ATX |
| Internal Dimensions | |
| Max. CPU Cooler Height | 166.5 mm |
| Max. GPU Length | 358.9 mm |
| Max. PSU Length / Depth | 140 mm |
| Display | |
| Display Included | No |
| Power Supply | |
| PSU Included | No |
| PSU Format | ATX, SFX |
| Power Supply Position | Internal |
| Cable Specifications | |
| Riser Cable Included | No |
| Fan Support | |
| Case Fan Support (Bottom) | 3 × 120 mm / 2 × 140 mm |
| Case Fan Support (Front) | 1 × 120 mm |
| Case Fan Support (Rear) | 1 × 120 mm |
| Case Fan Support (Side) | 3 × 120 mm / 2 × 140 mm |
| Case Fan Support (Top) | 2 × 120 mm |
| Max. Number of Fans | 10 |
| 120 mm Fan Support | 10 |
| 140 mm Fan Support | 4 |
| Radiator Support | |
| Max. Radiator Compatibility | 1 × 360 mm |
| Radiator / AIO Support (Side) | 240 mm, 360 mm |
| Drive Bays | |
| Max. 2.5″ Drives | 2 |
| Max. 3.5″ Drives | 1 |
| Max. 5.25″ Drives | 0 |
| Hot Swap Drive Bays | No |
| External Ports | |
| USB Type-C Ports | 1 × USB 3.2 Type-C |
| USB Type-A Ports | 2 × USB 3.0 Type-A |
| Audio Ports | 1 × 3.5 mm Combo Audio Jack (TRRS) |
| Case Features | |
| I/O Position | Top |
| Side Panel | Mesh |
| Vertical GPU Mount | No |
| Cable Management | Yes |
| Filters Included | Yes |
| Filter Position | Bottom |
| Noise Dampening | No |
| Back Connect | No |
| Expansion Slots | |
| Expansion Slots / PCI Slots | 4 |
| Materials | |
| Materials | Steel, Wood |
| Lighting | |
| RGB Lighting | No |
| Additional Contents | |
| Fans Included | Yes |
| Included Fans | 2 × 120 mm |
| Product Series | |
| Series | B4 |
| Other Features | |
| Housing Feedthrough | No |
| Fan Controller / Hub | No |
| Case VESA Mountable | No |
| Internal Monitor Mount | No |
| Card Reader | No |
| Compatibility Note | Please refer to the manufacturer’s compatibility information. You can find the latest overview on the manufacturer’s website. |
