Ergonomic right hand design for increased comfort, Sensor: 3360, Plug and play - no driver needed , Perfect lift-off distance: Only 1.5 ~ 1.8 mm , DPI ( Dots Per Inch ): 400 / 800 / 1600 / 3200 , Adjustable USB report rate 125 / 500 / 1000 Hz , Buttons: 5 , Length of cable: 2m / 6.6 ft, Operating system: Win2000/XP/VISTA/7/8; Mac OS X v10.2