Lian-Li B4 Mesh - PC Case, White

Elevate your PC building experience with the Lian-Li B4 Mesh PC Case in stunning white. This compact Micro-ATX and Mini-ITX case combines sleek aesthetics with remarkable functionality, making it the perfect choice for gamers and professionals alike. With superior airflow and versatile component compatibility, the B4 Mesh ensures your system stays cool under pressure.

This case is designed for optimal performance, featuring ample space for top-notch hardware and an intuitive layout that simplifies the installation process. Whether you're building a high-performance gaming rig or a streamlined workstation, the Lian-Li B4 Mesh delivers on all fronts.

Specifications

Type	Compact mATX / SFF case
Colors	White
Volume	21.3 L
Dimensions (D × W × H)	420 × 191 × 288 mm
Material	Steel
Motherboard Support	Micro-ATX / Mini-ITX
GPU Clearance	358 mm, up to 4-slot
CPU Cooler Clearance	162 mm (168 mm without side fan bracket)
Power Supply Unit (PSU)	ATX ≤ 140 mm / SFX
Storage Options	1 × 2.5" SSD front + 1 × 3.5" HDD or 2.5" SSD bottom
Top Fans	2 × 120 × 15 mm – included
Side Fans	3 × 120 mm / 2 × 140 mm with SFX PSU; 2 × 120 mm with ATX PSU
Bottom Fans	3 × 120 mm / 2 × 140 mm
Rear Fan	1 × 120 mm
Front Fan	1 × 120 mm slim, SFX PSU only
Radiator Support	Side: up to 360 mm with SFX PSU; 240 mm with ATX PSU
Expansion Slots	4
Dust Filter	Magnetic bottom filter
I/O Ports	2 × USB-A, 1 × USB-C, Audio, Power
Orientation	Horizontal / Vertical
Included Fans	2 × 120 × 15 mm slim, non-RGB

What's in the Box

Lian-Li B4 Mesh PC Case
2 × 120 × 15 mm slim fans
Magnetic bottom dust filter
Installation accessories
User manual

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₪‍384‍	In stock + −	B4W	Product colour: White
₪‍359‍	In stock + −	B4X	Product colour: Black

4.2

Reviews: 5

5 stars

40%

4 stars

40%

3 stars

20%

2 stars

0%

1 star

0%

Tali Goldstein

30/06/2025

3

The Lian-Li B4 Mesh has a great build quality and airflow, but I feel that the dust filters need improvement. They don't do a good job of keeping dust out, which is disappointing.

Advantages

Good airflow, solid build quality

Disadvantages

Ineffective dust filters

Rachel Levi

08/03/2025

5

I recently upgraded to the Lian-Li B4 Mesh and couldn't be happier. It’s spacious, allowing for multiple GPU configurations. Just a note—make sure you have enough room for it, as it’s larger than it looks!

Advantages

Spacious, multiple GPU support

Disadvantages

Requires ample space

Igor Petrov

15/01/2024

4

Lian-Li has done it again with the B4 Mesh. The build quality is top-notch, and the cable management options are fantastic. However, the front mesh can get quite dusty if not filtered properly, so keep that in mind.

Advantages

High build quality, excellent cable management

Disadvantages

Front mesh attracts dust

Dmitry Smirnov

20/11/2023

4

This case is all about aesthetics! I love the clean lines and modern feel of the Lian-Li B4 Mesh. Performance-wise, it's solid, but the price might deter some budget builders.

Advantages

Stylish design, solid performance

Disadvantages

High price point

Amit Cohen

02/10/2023

5

The Lian-Li B4 Mesh is an exceptional case with a sleek design and great airflow. The white finish looks stunning and fits perfectly into my setup. Installation was straightforward, and it supports plenty of cooling options.

Advantages

Sleek design, great airflow, easy installation

Disadvantages

Pricey compared to other cases