Lian Li B4-mATX: Overview
Build your next compact PC in the Lian Li B4-mATX. It’s a 21.3 L case co-developed with DAN Cases that fits Micro-ATX and Mini-ITX builds in both horizontal and vertical orientations.
- Horizontal and Vertical Modes: Integrated rear feet let you switch between layouts without tools. If you choose the vertical setup, it can free up to 30% more desk space. The rotatable AC inlet also adjusts to match either orientation.
- Liquid and Air Cooling Flexibility: Once you’ve chosen a layout, you can configure the cooling system to match your hardware. The case supports 360 mm and 280 mm radiators with SFX power supplies or 240 mm radiators with ATX power supplies up to 140 mm long. 2 pre-installed 120 × 15 mm slim fans run at up to 1800 RPM and daisy-chain to reduce cable clutter.
- GPU Installation and Stability: Removable front fan bracket lets large cards slide in from the front. A built-in anti-sag bracket handles GPUs up to 4 slots thick and 358 mm long.
- Tool-less Panel Access: Removable panels and a reversible rear fan bracket make cable routing and component access straightforward. Cable tie points near the PSU and top brackets keep the build tidy.
- Front I/O: Includes 2 USB 3.0 Type-A ports, one USB 3.2 Gen 2 Type-C port at 20 Gbps, a power button, and an audio jack.
The Lian Li B4-mATX is perfect for builders who want a compact case without giving up cooling options or GPU headroom.
