... interface works as a multiplexer, and selects the appropriate pin for communication. PIN3, PIN7, PIN8, PIN12 = Serial Link (ISO9141, KW81, KW82 ... simultaneously. The sample rate is depends mostly on the communication protocol. For example, older system, like Omega-B X 25 DT Engine ... reason, why only the USB port based interface is available for CAN-BUS. Compared to the TECH2, which is the dealers ...