An electronic device is provided that includes a first circuit board including a first electronic component and a second electronic component disposed on a side of the first circuit board, a second circuit board spaced apart from the first circuit board and having a side facing the side of the first circuit board on which the first electronic component and the second electronic component are disposed, a first interposer disposed between the first circuit board and the second circuit board to form an inner space between the first circuit board and the second circuit board, and a second interposer disposed between the first circuit board and the second circuit board to divide the inner space into a first region and a second region, wherein the first electronic component on the first circuit board is disposed corresponding to the first region, and the second electronic component on the first circuit board is disposed corresponding to the second region, and wherein the first interposer and the second interposer electrically connect the first circuit board to the second circuit board.