Abstract: In various example embodiments, a universal serial bus (USB) on-the-go (OTG) device includes at least four pins for transmitting or receiving an electric signal, a plug connector electrically connected with a USB receptacle connector of a first electronic device through first ends of the at least four pins, and a receptacle connector electrically connected with a USB plug connector of a second electronic device through second ends of the at least four pins. In this USB OTG device, at least portions of the first ends of the at least four pins are mounted in the plug connector, and at least portions of the second ends of the at least four pins are mounted in the receptacle connector. Other embodiments are also possible.