Features Signle power supply Power range 1.7V -3.2V Precision optical displacement prediction technology Very good 2-D motion sensor Support extremely fast moving speed Maximum speed of movement 28 Inch/sec CPI CPI: 400/ 500/ 600/ 800/ 1000(Default)/ 1200 / 1600 Once stop moving, immediately enter the energy saving model Data transmission is achieved through serial interfaces Built-in low power timer (LPT),sleep1/sleep2 models The mouse can be awakened by the MOTSWK pin, and the sensor is controlled to wake up from the sleep mode. Built-in oscillator LED current-limiting resistance 68-470 Ohm(Determine by the actual plane),recommend 100 Ohm. DIP8 package Description KA8 is a high integration optical mouse sensor, which have minimal external components . It is compatible with Microsoft 3D IntelliMouse, and CPI can be adjusted though fixed CPI register.