Interface adapter device and mobile terminal

A mobile terminal, comprising a female connector which is provided with a first contact and a second contact, wherein the female connector is adapted to a male connector of an interface adapter device;

• the interface adapter device comprises the male connector and a third contact and fourth contact provided on the male connector, wherein the male connector comprises a first end provided with a first interface and a second end provided with a second interface, the first and second ends are two opposite ends of the male connector, the third contact is electrically coupled to the second interface, the fourth contact is electrically coupled to the first interface, and the first and second ends of the male connector are insertable into the female connector,
• wherein the third contact is in contact with the first contact when the male connector is inserted into the female connector through the first end;
• and
• the fourth contact is in contact with the second contact when the male connector is inserted into the female connector through the second end.