
Lian Li A3-mATX White Small Form Factor Steel Mesh PC Gaming Case
Lian Li A3-mATX, White, Small Form Factor Chassis, Mesh Panelling, USB 3.0, MicroATX, Mini-ITX
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A3-mATX Steel Mesh Modular Mini-Tower from Lian Li

Minimalist but Wildly Dynamic The Lian Li A3-mATX embraces simplicity, combining precision airflow with a design focused on essentials. Its gated front panel invites air into the case, guiding it toward the finely perforated mesh behind, a quiet current that nurtures the components within. Supporting both mATX and ITX builds, it offers multiple PSU mounting points, and depending on its position and type, dramatically influences the layout. This flexibility allows users to strategically plan minimalist builds while packing the case with high-performance components. Minimalism defines its form—a compact, adaptable structure that provides choice without dominating its surroundings. Though small in size, its modular design unlocks surprising capacity, effortlessly housing bold, high-performance builds. Designed in collaboration with Dan Cases, this case brings a unique blend of functional elegance and precision.
Pure Black Pure White Wood Black Wood White
PLEASE NOTE: The images used below are used for illustration purposes. For the correct colour, please refer to the top image.
Discreet & Dynamic

26.3L Compact DesignThe A3-mATX is a masterclass in compact design, with a 26.7L frame that defies its size. Tailored for mATX and ITX motherboards, its 400 mm x 215 mm x 307.6 mm dimensions offer a remarkably versatile foundation. The minimalist exterior is a quiet statement of sophistication, while the modular panels and components empower users to shape their build with precision. It’s a case that thrives on simplicity yet opens doors to endless possibilities, packing performance and adaptability into a design that feels effortlessly refined.

MICRO-ATX & MINI-ITX

minimalistic design

modular layout

360mm AIO Layout

Flexible SFX/ ATX PSU
In Collaboration with DAN Cases

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The A3-mATX is the result of a collaboration between Lian Li and Dan Cases, bringing together the expertise of two renowned brands. Dan Cases is known for its innovative approach to compact, high-performance case design, where efficiency and simplicity are key. Their influence in the A3-mATX is evident in its refined modularity and space utilisation, offering a unique blend of precision and flexibility. This partnership is significant because it merges Lian Li’s reputation for exceptional build quality with Dan Cases’ minimalist, highly functional designs. The outcome is a case that doesn’t just look good—it optimises every inch, offering a new standard of performance in a compact form.
A Canvas for Cooling
Harness the FlowThe Lian Li A3-mATX offers an impressively adaptable cooling system for its compact size. Mesh panels invite cool air into the case, with ample room for various configurations. It supports a 360 mm radiator on the top, 240 mm radiators on the side and bottom, and up to three 120 mm top fans or two 140 mm ones. The side panel can fit two 120 mm fans, while the bottom allows for two more. This range of cooling options gives you the freedom to fine-tune your setup, making it possible to build a highly efficient system without sacrificing space.

Adaptable Space For Storage

REMOVABLE SSD TRAYThe A3-mATX includes a removable SSD tray mounted on the PSU bracket, offering flexibility for storage placement. It supports two 2.5” SSDs and can be relocated as needed, keeping your build clean and organised.

BOTTOM DRIVE SPACEThe case also features a bottom mounting point for additional storage, accommodating either a 2.5” SSD or a 3.5” HDD. This space efficiently utilises the compact design while offering the freedom to choose your preferred storage solution.
Multi-Level PSU Orientation

STAGES OF POWERThe A3-mATX provides exceptional PSU flexibility, supporting ATX, SFX, SFX-L, and LIAN LI Edge PSUs (F1 to F4 levels) across multiple mounting positions. An offset bracket for ATX PSUs unlocks the ability to install longer GPUs at F2 and F2.5, maximising available space. For added versatility, the case allows for front installation of the ATX PSU, mounting it on the SSD bracket with the included standoff tool—giving you complete control over your build’s layout and cooling potential.
Extensive Modular Design & Clearance
complete controlThe PSU placement and type in the A3-mATX shape the entire build, offering unmatched control. Choosing between an ATX, SFX or Lian-Li EDGE PSU redefines GPU length, fan and radiator configurations, all within this compact case. An ATX PSU allows for longer GPUs, while an SFX PSU frees up space for extra cooling. The top fan layout, side fan placement, and radiator sizes adjust accordingly, offering flexibility that’s rare in mini towers. With support for a 360 mm top radiator and multiple side fans, the A3-mATX lets you fine-tune your build, no matter how ambitious.





Always Within Reach

Quiet ConvenienceThe front panel features a smooth, deliberate surface that complements the case’s understated form. Free from unnecessary details, it maintains a calm, cohesive appearance, with ports fitted at the base to preserve a clean design.
2 ✕ USB 3.0 Type-A
1 ✕ Power Button
1 ✕ 3.5 Mic-In Jack
1 ✕ 3.5 Audio-In Jack
1 ✕ USB 3.1 Type-C