An electronic device is provided. The electronic device includes a housing forming at least a portion of an electronic device exterior, a socket disposed inside the housing, a tray and a storage medium. The storage medium includes a first terminal surface with a terminal and a second terminal surface with a terminal. The first and second terminal surfaces face away from one another. The storage medium is seatable on the tray.. The socket includes a plurality of first conductive contacts that face the first terminal surface and come into contact with at least some of a plurality of pins provided on the storage medium and a plurality of second conductive contacts that face the second terminal surface and come into contact with at least some of the plurality of pins of the storage medium in a state of being disposed not to come into contact with the plurality of first conductive contacts.