Strong Compatibility Fit for Nexiq USB-Link 3 Wired, USB-Link 3 Wireless, USB-Link 2 Bluetooth Edition, USB-Link 2 Wi-Fi Edition, INLINE 7. PLEASE NOTE: This cable does NOT work with the original USB Link. Wide Application 493033 Diagnostic Adapter Cable used to connect your device for Cummins engines with either a J1939 3-pin for Deutsch or a 2-pin adapter. Also works for USB Link 2, USB Link 3. Quick Diagnostics Adapter cable includes alligator clips to safely and efficiently connect a variety of diagnostic devices for troubleshooting and diagnosis, improving maintenance efficiency. .