Lian Li A3 mATX Black – High Airflow Small Form Factor Micro‑ATX Case

Lian Li A3 mATX Black Small Form Factor PC Case

The Lian Li A3 mATX Black is a highly versatile small‑form‑factor Micro‑ATX case designed for maximum airflow, hardware compatibility, and flexible layout options. Built with a high‑airflow steel mesh exterior, it supports GPUs up to 415mm, ATX or SFX power supplies, and radiators up to 360mm, making it ideal for compact high‑performance gaming builds.

Despite its small footprint, the A3 offers exceptional cooling potential with support for up to ten 120mm fans, multiple radiator mounting positions, and an open internal layout optimised for airflow. Its modular interior allows builders to choose between front‑mounted PSU or bottom‑mounted PSU configurations, giving full freedom to prioritise GPU length, airflow, or cable management.

With its clean black finish, steel mesh panels, and SFF‑friendly design, the Lian Li A3 mATX Black is perfect for gamers and PC enthusiasts who want a compact case without sacrificing performance or hardware compatibility.

Specifications

Model: Lian Li A3 mATX Black
Case Type: Micro‑ATX / Small Form Factor
Material: Steel mesh panels, steel frame
Motherboard Support: Micro‑ATX, Mini‑ITX
GPU Clearance: Up to 415mm
CPU Cooler Clearance: Standard mATX tower coolers (varies by layout)
PSU Support: ATX or SFX (two mounting positions)
Radiator Support: Up to 360mm (top/front depending on layout)
Fan Support: Up to 10 × 120mm fans
Drive Support: 2.5"/3.5" depending on configuration
Front I/O: USB, audio (varies by edition)
Dimensions: Compact SFF footprint (approx. 26–32L depending on feet)
Side Panel: Steel mesh (glass optional on other variants)
Colour: Black