OBD2 scanner for 3 Series with K+DCAN USB interface and CD1、Application: The K‑CAN model is replacement for 5 Series E39 E60 E61, the D‑CAN model is replacement for E90, E91, E92, E93 after 2007 and so on. 2、Voltage Detection: The battery voltage and ignition voltage both can be detected through the control line, greatly bring you more convenience. 3、Easy to Use: Just connect to the car OBD2 port, the diagnostic cable comes with a CD, and the the software is provided on a USB flash drive (not included) for easy installation. 4、Powerful Function: The main functions include switch between older and newer models, read and erase error codes, adaptation, coding and so on. 5、High Performance: The USB port diagnostic tool supports double K line, supports high speed D‑CAN and PT‑CAN 500kbit/s and low‑speed PT‑CAN 100kbit/s.