LIAN LI A3-MATX Mini Tower Cabinet (Black)

The Lian Li A3-mATX (model G99-A3X-IN) is a micro form factor PC case designed for builders who want a compact, well-ventilated chassis without sacrificing support for high-performance components. At just 26.3 litres, the A3-mATX packs remarkable hardware compatibility into a steel enclosure measuring 443 mm (D) × 194 mm (W) × 321.5 mm (H) with feet, or 306 mm (H) without. Three sides of the chassis feature steel mesh panels that promote strong passive and active airflow, helping your system run cooler even under sustained loads. All exterior panels can be removed tool-free, and modular brackets simplify installation and cable routing inside the tight interior. The A3-mATX supports M-ATX and ITX motherboards across four expansion slots. GPU builders will appreciate the 415 mm length clearance and up to 4-slot GPU thickness support, while the included anti-sag GPU bracket keeps heavy cards properly aligned. Note that installing a 25 mm thick fan at the bottom limits GPU thickness to 61 mm (3-slot maximum), and a combined radiator-and-fan installation leaves no room for a GPU in that configuration. Cooling flexibility is a standout trait of this chassis. Fan positions include three 120 mm slots on the top, three 120 mm or two 140 mm slots on the side, three 120 mm slots on the bottom, and one 120 mm slot at the rear — ten 120 mm fans in total. Radiator support spans up to 360/240 mm on the top, 360/280/240 mm on the side, and 240 mm on the bottom (expandable to 360 mm with a bottom-mounted fan), enabling full 360 mm AIO cooling in a sub-27-litre shell. PSU options are equally versatile: the relocatable PSU bracket accommodates ATX, SFX, and SFX-L units up to 220 mm in length, and an included ATX PSU offset bracket allows longer GPU installation. Storage is handled by two 2.5-inch SSD trays plus one bottom bay supporting either a 2.5-inch SSD or a 3.5-inch HDD. Front I/O includes two USB 3.0 Type-A ports, one USB 3.1 Type-C port, a microphone jack, and HD Audio. The A3-mATX was co-designed with Daniel Hansen of DAN Cases and manufactured by Lian Li, combining boutique industrial design with Lian Li's production expertise. Verified Specifications: • Case Type: MFF (Micro Form Factor) • Motherboard Support: M-ATX / ITX • Dimensions: 443 mm (D) × 194 mm (W) × 321.5 mm (H) / 306 mm (H) without feet • Capacity: 26.3 L • Material: Steel • Expansion Slots: 4 • GPU Length Clearance: Max 415 mm • CPU Cooler Height Clearance: Max 165 mm • PSU Support: ATX / SFX / SFX-L, max 220 mm • Fan Support: Top 3×120 mm, Side 3×120 mm or 2×140 mm, Bottom 3×120 mm, Rear 1×120 mm • Radiator Support: Top 360/240 mm, Side 360/280/240 mm, Bottom 240 mm (360 mm with bottom fan) • Drive Support: 2× 2.5" SSD (tray) + 1× 2.5" SSD or 3.5" HDD (bottom) • Front I/O: 2× USB 3.0 Type-A, 1× USB 3.1 Type-C, Mic, HD Audio • Dust Filter: 1× Bottom • Color: Black • Warranty: 1 year