An electronic device is provided. The electronic device includes a housing, a first printed circuit board seated inside the housing, and a second printed circuit board seated inside the housing such that a height of the second printed circuit board from the second surface is different from that of the first printed circuit board, wherein the first printed circuit board includes a mounting part on which at least one component is mounted, a first connector which extends from a first part of the mounting part. A portion of the first connector being substantially perpendicular to the mounting part and configured to be connected to the second printed circuit board, and a second connector which extends from a second part of the mounting part and configured to be connected to the second printed circuit board.