This programming cable is designed for use with CAN protocol motors and helps adjust wheel diameter settings and remove speed limitations. If your M600 motor is factory-limited to 32 km/h and you find the speed unsatisfactory, or if the displayed speed becomes inaccurate due to a change in wheel frame or diameter, this programming cable can help resolve these issues. It offers a simple and straightforward operation process. Operation instructions: 1. Connect and power on the motor. 2. Connect the motor to the main instrument cable. 3. Connect both ends of the programming cable to the motor and display screen respectively. 4. Plug the USB end of the programming cable into a computer or display screen USB port. 5. A lit indicator on the programming cable indicates a successful connection. For detailed instructions, refer to the video tutorial. 6. If a 25 fault code appears after connection, press the module button to restore normal function. For certain models, when switching wheel diameter settings, the display may not immediately reflect the change. In such cases, exit the settings, return to the main screen, and re-enter the settings to view the updated wheel diameter. Material: Plastic Color: As shown in image Package Contents: 1 x Programming Cable Note: Light reflection and differences in display screens may cause slight variations in the color of the item as shown in images. Measurement may vary by 1-3 cm.