ITM-MV8 and ITM-DV8 use Brickcom RF chipset ITM-WM8K to implement the world-wide first wireless mouse solution up to 8KHz polling rate. ITM-MV8 is the module PCBA designed for the mouse side, connected to optical sensor, buttons, wheel, LEDs and 3.3V power source. ITM-DV8 is an USB dongle PCBA designed for the PC/NB side, to transmit/receive data to/from ITM-MV8. Via USB2.0 HS, ITM-DV8 can transfer mouse data from ITM-MV8 to PC/NB with maximum 8KHz polling rate.