LIAN LI x DAN Cases B4-mATX Mesh Compact 21.3L SFF Gaming Case, 358mm 4-Slot GPU & 360mm Radiator Support, 140mm ATX PSU, White | G99.B4W.00

The LIAN LI x DAN Cases B4-mATX Mesh White represents the gold standard in Small Form Factor (SFF) PC case design. By combining LIAN LI's precision manufacturing with the legendary enthusiast engineering of DAN Cases, this 21.3-liter enclosure offers uncompromised hardware compatibility without taking over your desk.

Performance / Technology
Despite its compact 21.3L volume, the B4-mATX offers liquid cooling capabilities usually reserved for mid-tower cases. It supports side-mounted 360mm or 280mm radiators and up to nine 120mm fans throughout the top, side, front, rear, and bottom. CPU tower coolers up to 166.5 mm in height are also supported, giving air-cooling enthusiasts plenty of headroom.

Design & Ergonomics
Finished in a clean, powder-coated white, the chassis features tool-less removable panels that make building, upgrading, and maintenance fast and frustration-free. The flexible PSU mounting bracket supports standard ATX power supplies up to 140 mm in length as well as SFX/SFX-L units.

Compatibility / Use Cases
Ideal for gamers, content creators, and SFF enthusiasts who want maximum performance in a small, clean enclosure. The front I/O panel delivers high-speed modern connectivity, featuring a high-bandwidth USB 3.2 Type-C port (20Gbps), USB 3.0 Type-A, and a combined HD audio jack.

Why This Product Stands Out
Most Small Form Factor cases force builders to choose between compact size, standard ATX power supplies, or giant modern GPUs. The LIAN LI x DAN Cases B4-mATX Mesh breaks these limitations, providing room for 4-slot GPUs, 360mm AIO liquid coolers, and ATX PSUs in a stunningly small 21.3-liter footprint.