The Micro-ATX tower SilverStone Alta G1M SST-ALG1MB features a chimney effect design. Taking into account the natural convection of air, the layout design of the Alta G1M includes a pre-installed 180mm Air Penetrator fan, significantly enhancing airflow from bottom to top and benefiting from the natural tendency of warm air to rise. In addition to embodying the characteristics and qualities of the iconic Fortress FT03, the Alta G1M has a motherboard layout rotated 90 degrees and a small footprint with considerable height at a shallow depth.