DISK DEVICE

According to one embodiment, a disk device includes a housing having a first transmission hole, a magnetic disk, a head, a first sealing material having an inner surface and an outer surface and closing the first transmission hole, and a first wireless power feeding device having a first power feeding antenna. The first power feeding antenna is located mere inward of the housing than the outer surface of the first sealing material, and receives power transmitted through the first sealing material by wireless power feeding.