This programming cable is designed for use with CAN protocol motors and helps adjust wheel diameter settings and speed limit configurations. If your M600 motor is factory-limited to 32 km/h and you find the speed unsatisfactory, or if you've changed frames and the displayed speed is inaccurate due to mismatched wheel diameter settings, this cable can help resolve these issues. The programming cable is straightforward to use: 1. Connect and power on the motor. 2. Connect the motor to the main instrument line. 3. Connect both ends of the programming cable to the motor and display screen. 4. Plug the USB end of the programming cable into a computer or display screen USB port. 5. A lit indicator on the cable indicates a successful connection. Refer to video tutorials for detailed instructions. 6. If a 25 fault code appears after connection, press the module button to restore normal operation. For certain models, when switching wheel diameter settings, the display may not immediately reflect changes. In such cases, exit the settings menu, return to the main screen, and re-enter the settings to view the updated wheel diameter. Material: Plastic Color: As shown Package Contents: 1 x Programming Cable Note: Light reflection and differences in display screens may cause slight variations between the product image and actual color. Measurement error allowance is +/- 1-3 cm.