LIAN LI B4-mATX Mesh – Compact Micro-ATX Case

SKU: 1920920
  • Compact Micro-ATX / Mini-ITX Case
  • 21.3L Small Form Factor Design
  • Mesh Front Panel
  • Supports GPUs up to 358mm
  • CPU Cooler Height up to 162mm
  • Supports ATX / SFX PSUs up to 140mm
  • Up to 360mm Radiator Support with SFX PSU
  • 2 × 120mm Slim Fans Included
  • Horizontal & Vertical Layout Support
  • Warranty: 1 Year

3,899EGP

1 in stock

1 in stock

12 People watching this product now!

Description

The LIAN LI B4-mATX Mesh is a compact 21.3-liter small form factor PC case designed for Micro-ATX and Mini-ITX systems. Co-developed with DAN Cases, it combines a space-efficient chassis with strong hardware compatibility and flexible cooling options.

The mesh front panel provides an airflow-focused design while maintaining a clean and compact appearance. The B4-mATX supports both horizontal and vertical orientations, allowing users to adapt the case to different desk setups.

Despite its compact size, the B4-mATX supports graphics cards up to 358mm in length and CPU air coolers up to 162mm in height. Without the side fan bracket installed, CPU cooler clearance increases to 168mm.

The case supports both ATX PSUs up to 140mm and SFX power supplies. Using an SFX PSU also unlocks additional cooling and radiator configurations, including support for radiators up to 360mm.

Two 120 × 120 × 15mm slim fans are pre-installed at the top of the case. Depending on the selected PSU configuration, the B4-mATX can support additional 120mm or 140mm fans on the side and bottom, with additional rear and front fan support.

For storage, the B4-mATX provides mounting for one 2.5-inch SSD at the front and either one 3.5-inch HDD or one additional 2.5-inch SSD at the bottom.

The front I/O panel includes two USB 3.0 Type-A ports, one USB 3.2 Type-C port, an audio port, and a power button, providing convenient access to commonly used peripherals.

Key Features

  • 21.3-liter compact Micro-ATX chassis
  • Micro-ATX and Mini-ITX motherboard support
  • Mesh front panel for airflow
  • Horizontal and vertical installation options
  • Up to 358mm GPU clearance
  • Up to 162mm CPU cooler clearance
  • 168mm CPU cooler clearance without side fan bracket
  • ATX PSU up to 140mm or SFX PSU support
  • Up to 360mm radiator support with SFX PSU
  • Two pre-installed 120mm × 15mm slim fans
  • Up to 9 fans supported depending on configuration
  • 2.5-inch SSD and 3.5-inch HDD storage support
  • USB 3.2 Type-C front I/O

Technical Specifications

FeatureDetails
Product NameLIAN LI B4-mATX Mesh
BrandLIAN LI
ModelB4X / B4W
Case TypeSmall Form Factor Micro-ATX Case
Case Volume21.3L
MaterialSteel
Front PanelMesh
Motherboard SupportMicro-ATX / Mini-ITX
Back-Connect MotherboardsNot Supported
GPU Length ClearanceUp to 358mm
GPU ThicknessUp to 4 Slots
CPU Cooler HeightUp to 162mm
CPU Cooler Height Without Side Fan BracketUp to 168mm
PSU SupportATX up to 140mm / SFX
Radiator Support with SFX PSU360mm / 280mm / 240mm
Radiator Support with ATX PSU240mm
Top Fan Support2 × 120mm
Side Fan Support with SFX PSU3 × 120mm / 2 × 140mm
Side Fan Support with ATX PSU2 × 120mm
Front Fan Support1 × 120mm Slim Fan with SFX PSU Only
Bottom Fan Support3 × 120mm / 2 × 140mm
Rear Fan Support1 × 120mm
Included Fans2 × 120 × 120 × 15mm Slim Fans
Storage SupportFront: 1 × 2.5″ SSD / Bottom: 1 × 3.5″ HDD or 1 × 2.5″ SSD
Dust Filter1 × Magnetic Bottom Filter
I/O Ports2 × USB 3.0 Type-A, 1 × USB 3.2 Type-C, 1 × Audio, 1 × Power Button
Dimensions (D × W × H)420 × 191 × 288mm
OrientationHorizontal / Vertical
ColorBlack / White
Warranty1 Year

Specification