A connector for connecting an FFC to a substrate includes a plurality of signal contacts, a ground contact, and a housing. The signal contacts are arranged to come into contact with signal terminals of the FFC. The ground contact comes into contact with the ground terminal of the FFC. The housing holds the plurality of signal contacts and the ground contact. A first distance from an end of the housing to a contact point of each signal contact with each signal terminal is set to be substantially equal to a second distance from an end of the housing to a contact point of the ground contact with the ground terminal. The first and second distances are measured along a direction in which one of the FFC and the FPC is inserted into or removed from the connector.