The invention discloses a connector, which includes a first connecting unit, a second connecting unit, a third connecting unit, and a determining unit. Moreover, the first connecting unit is capable of being electrically connected to a first power source and/or a first data source; and the second connecting unit is capable of being electrically connected to a second power source and/or a second data source. Additionally, the determining unit is electrically connected to the first connecting unit and the second connecting unit respectively, for selectively outputting a data signal and/or a power signal based on a connecting status. Furthermore, the third connecting unit is electrically connected to the determining unit and an electronic device, for transmitting the data signal and/or the power signal from the determining unit to the electronic device.