Ultra-Compact 26.3L High-Airflow Micro-ATX Gaming Chassis:

Co-designed by Lian Li and DAN Cases, the A3-mATX Black Micro Tower Gaming Case packs extreme hardware compatibility into a minimalist 26.3-liter footprint. Featuring high-density ventilated mesh top, side, and front panels, the A3-mATX delivers direct intake airflow to satisfy high-wattage CPUs and flagship multi-slot graphics cards without thermal throttling.

Key features:

High-Airflow Full-Mesh Design: Fully perforated top, front, and side panels allow unrestricted passive and active cooling for high-performance components.
Flexible 360mm Radiator Mounting: Accommodates up to 360mm liquid cooling radiators on the top, side, or bottom mounting frames to maximize heat dissipation.
4-Slot Flagship GPU Compatibility: Supports full-length graphics cards up to 415mm directly plugged into the motherboard without requiring expensive PCIe riser cables.
Adjustable PSU Bracket System: Multi-tier mounting layout supports standard ATX or compact SFX power supplies positioned vertically or horizontally to match cooling configurations.
Toolless Panel Removal: Easily snap off top, front, and side mesh panels for effortless hardware access, cleaning, and routine cable maintenance.

specs:

Brand	Lian Li
Model Name	A3-mATX
Model number	A3-mATX Black
Material	Steel
Motherboard Support	M-ATX/ITX
Fan support	Top: 3x 120mm // Side: 3x 120mm or 2x 140mm // Bottom: 3x 120mm // Rear: 1x 120mm
RADIATOR SUPPORT	Top: 1x 360/240mm // Side: 1x 360/280/240mm // Bottom: 1x 240mm (360mm with fan at the bottom)
CPU Cooler Clearance	Max 165mm
GPU Length Limitation	Max 415mm
PSU Length Limitation	Max 220mm
Power Supply	ATX/SFX/SFX-L
Drive Bays	Tray: 2× 2.5” SSD // Bottom: 1× 2.5” SSD or 1 × 3.5” HDD
I/O Panel	1x Power Button // 2x USB 3.0 TYPE-A // 1x USB 3.1 TYPE-C // 1x Mic // 1x HD Audio
Expansion Slots	4 Standard Slots
Dust Filters	1x Bottom
Form factor	MFF (Micro Form Factor)
Weight	26.3L
Dimensions (DxWxH)	443 x 194 x 321.5 mm
Resources	https://lian-li.com/product/a3-matx/

Lian Li DAN A3 Black Micro-ATX Gaming Case

Product Description