A connector adapted to be disposed in a mobile device to electrically connect with a signal terminal of an electronic device is provided. The connector includes a casing, a tube, a pin and a terminal set. The casing has a first side, a second side and a through hole, and the tube is disposed in the second side. The pin has a first end and a second end. The first end is slidably disposed in the through hole and the second end protrudes out of the tube. The terminal set includes a first terminal and a second terminal, and the second terminal is movably connected with the first terminal. When the mobile device is assembled to the electronic device, the signal terminal of the electronic device leans against the pin, so that the pin leans against the first terminal to separate the first terminal and the second terminal.