a printed circuit board includes a base member including a major surface ; a first region and a second region adjacent to the first region when viewed in a direction perpendicular to the major surface ; a first conductive pattern layer formed over the major surface and comprising a plurality of conductive features positioned in the first region ; and a connector placed over the major surface and comprising a portion located in the second region . the first conductive pattern layer does not comprise a portion formed in the second region and overlapping the connector when viewed in the direction .