Lian Li B4 Wood White M-ATX Mini Tower Case – 21.3L SFF with 360mm Radiator Support

The Lian Li B4 Wood White is a compact Mini Tower case co-developed with Daniel Hansen of DAN Cases, combining thoughtful engineering with a distinctive wood-accented aesthetic. At just 21.3 litres, it punches well above its size class without compromising on compatibility or build quality. Despite its small footprint, the B4 mATX accommodates full-sized graphics cards up to 358mm long and four slots thick, aided by a removable front fan bracket that lets large GPUs slide in from the front for a frustration-free installation. A pre-installed GPU anti-sag bracket provides additional support for heavy, multi-slot cards. CPU cooler clearance reaches 168mm (162mm when the side fan bracket is fitted), making a wide range of tower coolers viable. Cooling flexibility is a core strength. With an SFX power supply, the side panel supports up to a 360mm or 280mm radiator; pairing an ATX PSU (up to 140mm length) limits the side radiator to 240mm. Two 120×120×15mm slim fans come pre-installed on the top panel, daisy-chained to minimise cable clutter and spinning up to 1,800 RPM. The case can house a total of up to nine fans across the top, side, bottom, rear, and front positions. A slim 120mm front intake fan is also possible when using an SFX PSU with a GPU shorter than 343mm. Modular design touches make the build process more approachable: the removable top fan bracket eases CPU 8-pin cable routing, while the reversible rear fan bracket can be oriented outward for extra liquid-cooling clearance or inward to shorten the path between the fan and CPU for improved air-cooling efficiency. A rotatable AC power inlet adapts between horizontal and vertical placement orientations. Tool-less removable panels and a removable bottom dust filter round out the practical conveniences. Connectivity on the I/O panel includes a USB 3.2 Gen 2 Type-C port (up to 20 Gbps), a USB 3.0 Type-A port, a combined audio jack, and a power button — accessible in both standard and vertical configurations. Verified Specifications: • Dimensions (D×W×H): 420 × 191 × 288 mm • Volume: 21.3 litres • Motherboard support: Micro-ATX, Mini-ITX (no back-connect) • Material: Steel body with wood accent panel • Colour: White • GPU clearance: up to 358mm, 4-slot • CPU cooler clearance: up to 168mm (162mm with side fan bracket) • PSU support: ATX up to 140mm / SFX • Radiator support (SFX PSU): 360mm / 280mm / 240mm (side); (ATX PSU): 240mm (side) • Pre-installed fans: 2 × 120×120×15mm slim top fans (up to 1,800 RPM, daisy-chained) • Max fan count: 9 • Storage: 1 × 2.5" SSD (front); 1 × 3.5" HDD or 1 × 2.5" SSD (bottom) • Expansion slots: 4 • I/O: USB 3.2 Gen 2 Type-C (20 Gbps), USB 3.0 Type-A, audio, power button • Dust filters: Bottom • Warranty: 1 Year