Lian Li A3-mATX Mini Tower Case

The Lian Li A3-mATX (Model: G99-A3X-IN) is a micro form factor PC case born from a collaboration between Lian Li's manufacturing expertise and DAN Cases designer Daniel Hansen. The result is a compact yet highly capable chassis that challenges the notion that small cases demand compromise. At just 26.3 litres, the A3-mATX packs an impressive feature set into its black steel body measuring 443 mm (D) × 194 mm (W) × 321.5 mm (H) with feet. Three sides of the enclosure are lined with steel mesh panels — including the top and sides — promoting aggressive airflow and a clean minimalist aesthetic that keeps thermals under control without sacrificing style. Despite its compact footprint, the A3-mATX accommodates full-length graphics cards up to 415 mm, making it compatible with virtually every current consumer GPU. CPU cooler compatibility extends to 165 mm in height, which opens the door to a wide range of tower air coolers. Liquid cooling enthusiasts are equally well served: the case supports a 360 mm or 240 mm radiator at the top, a 360/280/240 mm radiator on the side, and a 240 mm (or 360 mm with fans mounted externally) at the bottom. Fan mounting positions total up to ten 120 mm fans distributed across the top (3×120 mm), side (3×120 mm or 2×140 mm), bottom (3×120 mm), and rear (1×120 mm). The PSU bracket is relocatable and accepts ATX, SFX, and SFX-L units up to 220 mm in length, as well as Lian Li's own Edge PSU, mountable sideways or frontways to suit your build layout. Toolless panel removal and modular brackets simplify installation and cable management, while a removable bottom dust filter helps keep the system clean over time. Storage is covered by up to three 2.5-inch SSDs or a combination of two 2.5-inch SSDs plus one 3.5-inch HDD. The front I/O panel provides 2× USB 3.0 Type-A, 1× USB 3.1 Type-C, a power button, microphone input, and HD audio output across four expansion slots. Verifiable Specifications: • Model: G99-A3X-IN • Colour: Black • Case Type: MFF (Micro Form Factor) • Capacity: 26.3 L • Dimensions: 443 mm (D) × 194 mm (W) × 321.5 mm (H) with feet; 306 mm (H) without feet • Material: Steel • Motherboard Support: M-ATX / ITX • PSU Support: ATX / SFX / SFX-L (max 220 mm) + Lian Li Edge PSU • Max GPU Length: 415 mm • Max CPU Cooler Height: 165 mm • Fan Support: Top 3×120 mm | Side 3×120 mm or 2×140 mm | Bottom 3×120 mm | Rear 1×120 mm (10 total) • Radiator Support: Top 360/240 mm | Side 360/280/240 mm | Bottom 240 mm (360 mm with fan external) • Drive Support: 2× 2.5-inch SSD (trays) + 1× 2.5-inch SSD or 1× 3.5-inch HDD (bottom) • Expansion Slots: 4 • I/O: 2× USB 3.0 Type-A, 1× USB 3.1 Type-C, Mic, HD Audio, Power Button • Dust Filter: 1× Bottom • Warranty: 1 Year