Electronic device and cable and operation method thereof

The present invention relates to an electronic device and the cable and a driving method, the cable, when the power to be transmitted, the notification to output the second connector, the first and the notification device, located in the first connector, the other side located at one side of the connection between the second connector and connected to the front structure, and the power lines including a power line for transmitting data line and the power for transmitting the data and determine the nature of the power transmitted through the power line, in which the output from the alert device based on the determined characteristics of the power cable may comprise a control unit for varying a shape of the notification. And the other may further comprise a variety of embodiments.