Dongle device for operating external input device and external input system including the same, and operating method for external input device

PURPOSE: A dongle device for operating an external inputting unit, an external inputting system including the same, and an operating method for the same are provided to allow users to easily use the various functions of terminals. CONSTITUTION: Wired interfaces(210, 220) are in connection with an external inputting unit including an external inputting part. A signal converting part(230) converts wired inputting signals from the external inputting unit into wireless inputting signals for wireless communication modules(241, 242). The wireless communication modules transmit the wireless inputting signals to a terminal based on a wireless communication channel. An antenna part transmits and receives the signals of the wireless communication modules.