Lian Li B4 mATX Mesh PC Case - White

The Lian Li B4-mATX is a compact 21.3-litre small form factor case co-developed with DAN Cases, su...

Best current price£57.70from PCHUB.UK

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PCHUB.UKLian Li White B4-Matx Mesh Mini Tower
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£57.70
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AWD-IT.co.ukLian Li White B4 Compact Matx Mesh PC Case - G99.b4w.00
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Scan ComputersLian Li B4-Matx Sff Micro Atx Mesh Pc Gaming Case White B4w
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GamingKitLian Li White B4-Matx Mesh Mini Tower
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eBayLian Li B4-mATX Chassis, Small Form Factor, White, 2x 120mm Fans, USB-C / USB-A,
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£73.32
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Product Information

Full details

The Lian Li B4 mATX Mesh PC Case is an ideal choice for PC enthusiasts and builders who want to maximize high-end hardware performance in a compact 21.3-litre footprint. Co-developed with DAN Cases, this chassis offers impressive support for Micro-ATX motherboards, 360mm radiators, and large 4-slot GPUs, making it a powerful solution for small form factor (SFF) workstations; however, the tight space requires careful planning for cable management to maintain optimal airflow.

All features

ColourWhite
Release Year2024
Model Part NumberG99.B4W.00
BrandLIAN LI

Extended Product Information

FAQs

Can I fit a full-size ATX motherboard?

No, the B4-mATX is designed specifically for Micro-ATX and Mini-ITX motherboards.

What is the maximum GPU length supported?

The case supports graphics cards up to 358mm in length.

Does it come with fans pre-installed?

Yes, it includes two 120mm slim fans mounted at the top.

Can I use a 360mm radiator?

Yes, the case is specifically engineered to support up to 360mm AIO liquid coolers.

Is the AC inlet adjustable?

Yes, the AC inlet is rotatable to allow for convenient cable routing regardless of your desk layout.

What power supply size fits this case?

The case supports ATX power supplies up to 140mm in length.

Troubleshooting

Difficulty closing side panels

Check that all power cables are neatly bundled and not pressing against the inner side of the panel; ensure no excess wire is creating a bulge.

High component temperatures

Verify that the GPU fans are oriented toward the intake mesh and that the top exhaust fans are spinning freely without cable interference.

USB Type-C port not functioning at full speed

Ensure the front panel connector is fully seated into the USB 3.2 Gen 2x2 header on your motherboard and that motherboard drivers are up to date.

Pros and Cons

Pros

  • Supports large 360mm AIO liquid coolers
  • Space-saving vertical orientation option
  • High-airflow design keeps components cool
  • Compatible with large 4-slot GPUs
  • Tool-less panels for easier installation

Cons

  • Tight interior requires precise cable management
  • Limited to 140mm ATX power supplies
  • Compact space can make installation challenging for beginners

Setup, Compatibility & Care

To ensure a smooth setup, begin by determining your orientation (horizontal vs. vertical) as this affects the installation of the rotatable AC inlet. The case is compatible with M-ATX and Mini-ITX motherboards and requires an SFX or up to 140mm ATX power supply. When performing maintenance, the tool-less panels can be removed by applying light pressure. Keep the front mesh panel clear of dust buildup by using a soft brush or compressed air periodically, as this is the primary intake source for your system's cooling. Ensure the GPU anti-sag bracket is tightened only once the graphics card is fully seated and secured into the PCIe slot.

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