"The Thermaltake Suppressor F1 is a niche product. Because of its size it closes the gap between a compact ITX case and the possibility to use potent hardware and the necessary cooling. Owner of the Suppressor F1 also won’t need to make any compromises in their PSU choice or graphic card. Only the CPU heatsink size should be checked in terms of compatibility."
Thermaltake Suppressor F1 SFF chassis review by OCInside - Introduction & Conclusion.