An electronic apparatus which is capable of preventing a joint between a jack connector and a connector substrate from being broken due to prying after insertion of a plug without bringing about an increase in the size of the connector substrate. In a cantilever spring portion of a chassis, hooking portions that penetrate holes formed in the connector substrate and hook the connector substrate are provided on both sides in a width direction of the connector substrate which is vertical to a direction in which the plug is inserted. A screw, which fastens the connector substrate to the cantilever spring portion, is disposed in the same line as the plug insertion direction and on an opposite side of a plug insertion opening in the jack connector. When the connector substrate is not bent, a space is formed between the connector substrate and an end of the hooking portion.