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Lian Li B4-mATX Mesh Mini Tower White
Available for delivery from Thursday 12th November
Click & Collect from Thursday 12th November
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Airflow-Optimised Mesh Construction
Encased in fine steel mesh side and front panels, the chassis provides continuous ventilation to keep high-end components cool. The all-white finish offers a bright, clean foundation for your setup, while tool-less panel removal makes hardware upgrades and routine maintenance quick and straightforward.
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Versatile Dual-Orientation Layout
The chassis adapts easily to your workspace by supporting both traditional horizontal and space-saving vertical configurations. Rotating the case vertically reduces its desk footprint by up to 30%, supported by integrated rear feet, a rotatable AC power inlet, and a low-profile routing system with 52mm of cable clearance.
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Extensive Cooling Capabilities
Out of the box, the case includes two pre-installed 120mm slim white fans at the top and supports up to 9 fans in total. For liquid cooling setups, the side bracket accommodates 240mm, 280mm, or 360mm radiators up to 52mm thick, while air coolers up to 165mm tall fit with ease.
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Full-Sized Graphics Card Support
Engineered to accommodate modern GPUs, the interior fits 4-slot cards up to 358mm in length. A pre-installed anti-sag bracket prevents card droop, and a removable front frame bracket allows large graphics cards to slide smoothly into position during assembly.
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Flexible Hardware and Connectivity
The layout supports Micro-ATX or Mini-ITX motherboards along with standard ATX power supplies up to 140mm or compact SFX units. Front I/O access remains effortless in both orientations, offering a high-speed USB 3.2 Type-C port (20Gbps), two USB 3.0 Type-A ports, and a combined audio jack.
User Controls
- User Controls: Power Button
Interfaces/Ports
- Audio Line Out Ports: 1 (Shared 3.5mm audio jack)
Electrical
- Electrical Voltage: Pass-through / N/A (Standard AC power extension cable provided)
Physical
- Form Factor: Micro-ATX (21.3L Small Form Factor)
Interfaces/Ports
- Microphone In Port: 1 (Shared 3.5mm audio jack)
Storage
- Internal Expansion Bays: 2x 2.5 drive bay or 1x 3.5 drive bay
Expansion
- Expansion Slots: 4
Interfaces/Ports
- USB Ports: 3 (2ž USB 3.0 Type-A, 1ž USB 3.2 Type-C)
- Audio Line In Ports: 1 (Shared 3.5mm combo jack)
- Audio Line Out Ports: 1 (Shared 3.5mm combo jack)
- Headphone Ports: 1 (3.5mm combo audio jack)
- Microphone In Port: 1 (3.5mm combo audio jack)
Electrical
- Cooling System: up to a 360mm side radiator (requires SFX/SFX-L PSU and max 52mm combined radiator/fan thickness
- Power Supply: Standard ATX / SFX / SFX-L (Not included)
Environmental
- Operating Temperature: Standard PC operating conditions
- Operating Humidity: Standard PC operating conditions
Physical
- Form Factor: Micro-ATX
Warranty
- Warranty: 1 Year
Physical
- Case Colour: White
- Material: Steel, Mesh / Tempered Glass
- LED Status Indicators: Power LED
- Kensington Lock Slot: No / Not Supported
- Motherboard Compatibility: Micro-ATX, Mini-ITX
- In The Box: Case, 2ž 120mm slim PWM fans (top pre-installed), accessory box (screws/standoffs, internal AC extension cable, user manual)
- Width: 191 mm
- Depth: 420 mm
- Height: 288 mm
Identifiers
- Stock Code: CAS5951
- Mfg Code: G99.B4W.00
Warranty
- Warranty: 1 Year
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