To provide a connector for electronic storage media which can prevent simultaneous insertion of two or more electronic storage media.

This is a connector for electronic storage media in which a plurality of electronic storage media can be inserted and by inserting each electronic storage media into the corresponding insertion port of the connector housing, the electrode of electronic storage media and the contact in the insertion port are connected. The connector has at least one set of two insertion ports for electronic storage media which are formed in two stages in thickness direction and do not share the insertion space mutually. The base end part is fixed between the thickness direction of the one set of insertion ports for electronic storage media, and two projections at the top end part have lock members which protrude respectively to the two insertion ports for electronic storage media. When the electronic storage media is inserted into one of insertion port, the projection on one side is pushed and restricts the movement of the projection on the other side and locks the insertion of the electronic storage media on the other side.