According to one embodiment, in a memory card, a sealing portion houses the memory chip and the controller chip and includes a first main surface and a second main surface arranged on an opposite side of the first main surface. A first terminal group includes a plurality of electrode terminals arranged in a first direction inside the first main surface. A second terminal group includes a plurality of electrode terminals arranged in the first direction inside the first main surface. A conductive pattern is arranged between the first terminal group and the second terminal group in the first main surface. A conductive pattern has a longer dimension than that of the electrode terminal in the first terminal group. The conductive pattern has a longer dimension than that of the electrode terminal in the second terminal group. The conductive pattern is in a planar shape.