Genuine Nexiq cable. Works with Nexiq USB Link 2 and Link 3. For 2016 and newer Peterbilts, Kenworths, and Volvos with Cummins engines. Diesel Laptops This is a 9 pin cable converter adapter for vehicles with data traffic on CAN 3. This CAN 3 to CAN 1 crossover cable adapter/converter is designed to move J1939/CAN channel 3 diagnostic communications over to J1939/CAN channel 1.