DATA CABLE AND CHARGING DEVICE

This application discloses a data line and a charging device. A data line includes a Type-A port, a first port, a cable, and a circuit identification module, where VBUS pins, D+ pins, D-pins, and GND pins in the Type-A port and the first port are connected in a one-to-one correspondence; the circuit identification module includes a pull-up resistor, a switch circuit, and a detection circuit, where a first terminal of the switch circuit is connected to the CC pin of the first port, a second terminal is connected to the VBUS pin through the pull-up resistor, a third terminal is connected to the CC pin of the Type-A port, an input terminal of the detection circuit is connected to the CC pin of the Type-A port, and an output terminal is connected to a control terminal of the switch circuit; and the detection circuit controls connection between the first terminal and the second terminal or the third terminal of the switch circuit.