* 3Ft USB Cable included * Unit dimensions 15x11.75x1.5 inch at lower height level * Unit dimensions 15x11.75x6 inch at higher height level * 5 Fans built-in 1 (120x120x25mm) 4 (70x70x15mm) * Fab speed 1 (1000 + 10% RPM) 4 (2000 + 10% RPM) * Air volume 74.35 CFM * DC 5v * Power 1.75W