Lian Li B4-mATX Wood Beech Wood Panel SFF Micro-ATX Case - White

The Lian Li B4-mATX Wood White PC-B4W-WD packs a versatile Micro-ATX layout into a compact 21.3-litre Small Form Factor chassis accented by a genuine beech wood front panel. Measuring just 420 x 191 x 288 mm, this convertible tower offers the hardware compatibility of a much larger case while maintaining a minimal desktop footprint.

Maximising desk space with a 21.3-litre convertible layout

By optimising internal space, this chassis accommodates both Micro-ATX and Mini-ITX motherboards within a 21.3-litre volume. This allows you to build a compact system without the premium cost or connectivity limitations often associated with Mini-ITX-only builds. Please note that back-connect motherboards are not supported. With four expansion slots available, the layout easily accommodates multi-slot graphics cards and additional expansion cards.

Room for 358 mm graphics cards and high-clearance coolers

Despite its small footprint, the interior is engineered to house high-performance components. It supports graphics cards up to 358 mm in length, which reduces slightly to 343 mm if you install a 15mm-thick slim front fan. For CPU cooling, the chassis provides up to 162 mm of height clearance, which expands to 168 mm if you remove the side fan bracket. Storage options are kept efficient, with a dedicated mount for one 2.5-inch SSD at the front, and space for either one 3.5-inch HDD or one 2.5-inch SSD at the bottom.

Flexible cooling configurations tailored to your power supply

The cooling layout adapts to your choice of power supply. When using a compact SFX power supply, the side bracket can accommodate large 360 mm, 280 mm, or 240 mm liquid cooling radiators, and you can install a single 120 mm slim fan at the front. Opting for a standard ATX power supply (up to 140 mm deep) shifts the side radiator support to a maximum of 240 mm. Out of the box, the case includes two pre-installed 120 x 120 x 15 mm slim top fans to immediately exhaust hot air. Additional fan mounting points include space for up to three 120 mm or two 140 mm fans on the side (with SFX PSU), up to three 120 mm or two 140 mm fans at the bottom, and a single 120 mm fan at the rear.

Premium beech wood detailing and 20Gbps Type-C connectivity

The exterior design pairs clean white steel panels with a warm, natural beech wood front panel, creating a modern aesthetic that fits into professional workspaces and home environments. The front I/O panel provides convenient, high-speed access to peripherals, highlighted by a USB 3.2 Type-C port capable of up to 20Gbps transfer speeds. It also includes two USB 3.0 Type-A ports, a combined audio jack, and a power button. Maintenance is straightforward thanks to a removable bottom dust filter that helps keep internal components clean.

Warranty

This product comes backed by a 1-year warranty.

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