Lian Li - B4-mATX Walnut Wood Compact SFF Computer Case Pre-installed 2 x 120mm Fans Rotating AC Inlet Horizontal/Vertical Setup - Black
Reviews coming soon
About this product
The B4 mATX is a 21.3-liter small form factor case developed in collaboration with DAN Cases. Designed to deliver strong hardware compatibility in a compact footprint, it supports mATX motherboards, up to 358mm GPUs, and both ATX and SFX power supplies. The B4 mATX can be positioned either horizontally or vertically, allowing users to adapt the system style to their workspace. Multiple front panel options are available, including mesh or real wood finishes, giving the B4 mATX a versatile aesthetic suited for both gaming and lifestyle. With thoughtful airflow design, modular mounting brackets, and flexible cooling configurations, including support for up to a 360mm AIO when using an SFX PSU, the B4 mATX delivers the performance potential of larger cases within a compact SFF design
Pre-installed Fans
Comes with two slim 120mm non-RGB fans for immediate cooling out of the box.
Elegant Aesthetic with Premium Real Wood Finish
Available in black walnut or white beech wood finishes for a stylish look.
Strong Hardware Compatibility
Supports mATX motherboards, GPUs up to 358mm, and CPU coolers up to 166.5mm tall.
Dual Positioning
Use horizontally for a desktop blend or vertically for a space-saving tower design.
Customizable Cooling Configurations
Offers flexibility for additional fans and radiators based on PSU choice.
- Motherboard Form FactormicroATXMaximum GPU Length358 millimetersProduct Height14.09 inchesProduct Width10.47 inchesProduct Depth18.54 inchesWindow Panel(s)None
Reviews
This product doesn't have any reviews yet.
Compare similar products

The B4 mATX is a 21.3-liter small form factor case developed in collaboration with DAN Cases. Designed to deliver strong hardware compatibility in a compact footprint, it supports mATX motherboards, up to 358mm GPUs, and both ATX and SFX power supplies. The B4 mATX can be positioned either horizontally or vertically, allowing users to adapt the system style to their workspace. Multiple front panel options are available, including mesh or real wood finishes, giving the B4 mATX a versatile aesthetic suited for both gaming and lifestyle. With thoughtful airflow design, modular mounting brackets, and flexible cooling configurations, including support for up to a 360mm AIO when using an SFX PSU, the B4 mATX delivers the performance potential of larger cases within a compact SFF design

LIAN LI A3- mATX-WD Black Wood front panel SPCC M-ATX / ITX Computer Case ------ A3- mATX-WD Black

The B4 mATX is a 21.3-liter small form factor case developed in collaboration with DAN Cases. Designed to deliver strong hardware compatibility in a compact footprint, it supports mATX motherboards, up to 358mm GPUs, and both ATX and SFX power supplies. The B4 mATX can be positioned either horizontally or vertically, allowing users to adapt the system style to their workspace. Multiple front panel options are available, including mesh or real wood finishes, giving the B4 mATX a versatile aesthetic suited for both gaming and lifestyle. With thoughtful airflow design, modular mounting brackets, and flexible cooling configurations, including support for up to a 360mm AIO when using an SFX PSU, the B4 mATX delivers the performance potential of larger cases within a compact SFF design

MODEL: A3X COLOR: White-Wood CASE TYPE: MFF (Micro Form Factor) DIMENSION: (D) 443mm x (W) 194mm x (H) 321.5mm (D) 443mm x (W) 194mm x (H) 306mm(w/o feet) CAPACITY: 26.3L MATERIAL: Steel MOTHERBOARD SUPPORT: M-ATX/ITX PSU SUPPORT: ATX/SFX/SFX-L (Max 220mm) FAN SUPPORT: Top: 3 x 120mm or 2 x 140mm Side: 3 x 120mm or 2 x 140mm Bottom: 3 x 120mm Rear: 1 x 120mm RADIATOR SUPPORT: Top: 1 x 360/280/240mm Side: 1 x 360/280/240mm Bottom: 1 x 240mm (360mm with fan at the bottom) DRIVE SUPPORT: Tray: 2 × 2.5” SSD Bottom: 1 × 2.5” SSD or 1 × 3.5” HDD GPU LENGTH CLEARANCE: Max 415mm CPU HEIGHT CLEARANCE: Max 165mm I/O PORTS: 1 x Power Button 2 x USB 3.0 TYPE-A 1 x USB 3.1 TYPE-C 1 x Mic 1 x HD Audio DUST FILTER: 1 x Bottom WARRANTY: 1 year
Specs
Be the first to ask a question.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.
















































