The tool-free-user-friendliness and superior thermal performance are necessary factors for CM high quality model.Besides, iTower 930 has front HDD hot-swap function. Users can detect the HDD connecting status easely through SATA hot swappable back panel. It has excellent upgrade ability supporting EPS 230 mm and mini-redundant power supply. More important, iTower 930 owns laconic, staid apearance design with aluminum bezel.