According to one embodiment, the electronic apparatus includes a main body including a main body connector, a holder detachably mounted on the main body, the holder including a front supporter and a back supporter that are used to support an external apparatus and an opening between the front supporter and the back supporter, the main body connector exposed from the opening when the holder is on the main body, so that an external apparatus connector of the external apparatus is plugged to the main body connector to achieve an electrical connection when the external apparatus is inserted between the front supporter and the back supporter.