CONNECTOR

A connector includes two by N contacts arranged in two columns and N rows, where N is an integer of three or more, N contacts in each column being arrayed at a predetermined pitch in a first direction parallel to each column within a corresponding one of column areas each extending in the first direction and having a predetermined width in a second direction perpendicular to the first direction, a distance between two contacts in one endmost row in the first direction among the N rows being larger than a distance between two contacts in each of the other rows and different in length from the predetermined pitch, a distance between two contacts in the other endmost row in the first direction among the N rows being smaller than a distance between two contacts in each of the other rows and different in length from the predetermined pitch.