The new S-21 series offers both extreme performance & high capacity, The S-21series proves that it is possible to build an enclosure for entertainment or industrial field. The aluminum front panel is crafted to achieve a generous feeling of substance by minimizing gaps and holes. Everything is either covered or hidden to make sure the look is clean. The S-21 is compatible with the Next Generation Cooling Performance and full range of Mini-ITX motherboards (17cmx17cm).