Lian Li DAN B4 Mesh White Micro Tower Gaming Case
Co-developed with DAN Cases, the Lian Li DAN B4 Mesh White is a compact 21.3L micro-ATX case that delivers exceptional hardware compatibility in a clean white finish. Supporting M-ATX motherboards, 358mm 4-slot GPUs, 140mm ATX PSUs, and 360mm radiators, the B4 Mesh White offers unparalleled flexibility in a compact footprint with a fresh white aesthetic.
358mm GPU
360mm AIO
Mesh White
DAN Cases Collab
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Key Features
📐 Compact 21.3L with Broad Compatibility
With a compact 21.3L volume, the B4-mATX delivers impressive hardware compatibility, supporting M-ATX motherboards, 360mm AIOs, 140mm ATX PSUs, and up to 358mm 4-slot GPUs.
✨ Clean Mesh Design — White Finish
The B4-mATX offers a clean white mesh panel for an airflow-focused look. The design supports front-to-back airflow, balancing cooling performance with a streamlined exterior in a fresh white finish.
🌀 Flexible Cooling — Up to 9 Fans
Supports up to 9 fans across top, side, bottom, rear, and front. Includes 2 pre-installed 15mm slim fans on top. Side supports 360mm, 280mm, or 240mm radiators with SFX PSU.
🎮 358mm 4-Slot GPU + Anti-Sag
Supports GPUs up to 358mm and 4 slots thick with a pre-installed GPU anti-sag bracket for stability. The removable front bracket allows easy GPU installation from the front.
🤝 Co-Developed with DAN Cases
Co-developed with Daniel Hansen of DAN Cases, the B4-mATX combines flexible modularity with LIAN LI’s precision craftsmanship in a compact form. Supports horizontal and vertical layouts.
Technical Specifications
Is the DAN B4 Mesh White Right For You?
✓ Best For
- Compact mATX builds with high-end components in white
- Users wanting 360mm AIO support in a small footprint
- Builders who prefer clean white aesthetics
- Those who value mesh panel airflow design
- Gamers needing 358mm 4-slot GPU support
Consider Alternatives If
- You need ATX motherboard support (mATX only)
- You want back-connect motherboard support
- You require more than 2 storage drives
- You prefer glass or wood panel aesthetics (mesh only in white)
Common Questions
What motherboards does the DAN B4 Mesh White support?
The B4 Mesh White supports Micro-ATX and Mini-ITX motherboards. It does not support back-connect motherboards.
What GPUs fit in the DAN B4 Mesh White?
The B4 Mesh White supports GPUs up to 358mm in length and up to 4 slots thick. It includes a pre-installed GPU anti-sag bracket for stability.
Does the B4 Mesh White support 360mm radiators?
Yes. With an SFX power supply, the B4 Mesh White supports 360mm, 280mm, and 240mm radiators on the side. With an ATX PSU, it supports 240mm radiators.
What power supplies fit in the B4 Mesh White?
The B4 Mesh White supports ATX power supplies up to 140mm in length, as well as SFX power supplies.












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