SILVERSTONE ALTA G1M MATX Mini Tower Cabinet (Black)

The SilverStone ALTA G1M is a Micro-ATX mini tower cabinet engineered around the stack-effect cooling philosophy first popularised by the Fortress FT03. By rotating the motherboard 90 degrees, the case creates a natural bottom-to-top airflow path: cool air enters from below, passes over the hottest components, and exits at the top — working with physics rather than against it. A pre-installed 180mm Air Penetrator fan reinforces this directional airflow without requiring the builder to source additional cooling hardware on day one. Despite its compact footprint — just 200mm wide and 307mm deep — the ALTA G1M packs in serious hardware support. It accommodates graphics cards of any length and up to 4-slot thickness, making it future-compatible with even the most oversized current-generation GPUs. Liquid cooling enthusiasts will appreciate support for radiators up to 360mm in length, enabling full custom or all-in-one loop configurations in a chassis that sits comfortably on a small desk. Cable management is not an afterthought here: mandatory cable routing channels keep all four exterior sides free of visible wiring, so the finished system looks as clean as the engineering behind it. A multi-purpose internal bracket allows builders to adapt the layout for various cooling and storage configurations, adding flexibility without bulk. The front I/O panel provides a USB Type-C port, two USB 3.0 ports, and a combo audio jack — a practical, modern selection for day-to-day peripheral access. Power supply options are limited to SFX and SFX-L form factors, consistent with the case’s compact internal volume and vertical layout. Verified Specifications: • Model: ALTA G1M • Color: Black • Case Material: Steel body with plastic accents • Motherboard Support: Micro-ATX (up to 9.6″ × 9.6″), Mini-ITX (up to 6.7″ × 6.7″) • Power Supply: SFX, SFX-L • Max Radiator: 360mm • GPU Support: Any length, up to 4 slots • Expansion Slots: 4 • Internal 3.5″ Drive Bays: 4 • Pre-installed Fan: 1 × 180mm Air Penetrator • Front Ports: USB Type-C × 1, USB 3.0 × 2, Combo Audio × 1 • Dimensions: 200mm (W) × 507mm (H) × 307mm (D) / 7.87″ × 19.96″ × 12.09″ • Weight: 6 kg