According to one embodiment, an electronic device is provided with a heat transfer unit and a pressing member. The heat transfer unit includes a heat receiving portion thermally connected to a heat generating component, a heat radiating section thermally connected to a heat radiating part, and a plurality of passages through which fluid flows. The heat transfer unit includes first and second members being flexible and mutually bonded. The second member includes a plurality of passage parts which form spaces to be the passages between the first member and the second member, and a flat part being located between the adjacent passage parts and in contact with the first member. The pressing member presses the flat part toward the heat generating component, avoiding the plurality of passage parts.