Special breakout box which enables you to access all pins on a 16 pin OBD2 connector via 4mm female banana sockets.

Fully compatible with the Bosch original part number 1.684.462.346

Some cars use a lot of different K-lines for it's different systems like engine ECU, ABS, etc. this is needed for most scantools if you want to access all the systems just by pluging the K-line into the right socket of the system (Examples of such cars are Opel or Mercedes Benz)