An electronic device includes a platform controller hub and a charging interface. The charging interface includes a connector for coupling to a peripheral device, and a charging integrated circuit coupled to the connector. The connector includes an insert detecting member for detecting if the peripheral device is inserted. The charging integrated circuit can provide power to the connector. The platform controller hub can exchange data through the connector through the charging integrated circuit. The charging integrated circuit can cut off the power to the connector when the insert detecting member detects that no peripheral device is inserted in the connector.