An electronic module includes a case and a connecting member. The case includes a top panel and a side panel coupled to the top panel and substantially perpendicular to the top panel. The top panel includes two opposite elastic pieces. The connecting member includes a cable extending from the side panel and a connector coupled to the cable. The connector is attached to the top panel, and the two opposite elastic pieces are deformable to engage with the connector to prevent the connector from disengaging from the top panel.