Here is everything you need to know about finding, installing, and troubleshooting this specific driver version to get your diagnostics back on track. Understanding the Ross Tech USB Driver 03.02.07
: Required for genuine Ross-Tech HEX-, KEY-, KII-, or Micro-CAN series interfaces.
If you are using an older "legacy" interface (like the HEX+CAN), ensure you check the box for "Install USB Drivers for Legacy Interfaces" during installation.