Patent ID: 8194396

Claim:
An AC adapter unit comprising: an AC adapter including an AC adapter block having an AC inlet, and a DC cable extending from the AC adapter block; and a storage tray having a carrying surface on which the AC adapter is placed; wherein the DC cable has a bundled part that is bundled in a figure-8 shape when seen from a direction perpendicular to the carrying surface of the storage tray; and the AC adapter block and bundled part of the DC cable are stored in adjacent positions on the carrying surface so that the length of the AC adapter block and the length of the bundled part of the DC cable are parallel; wherein: a ferrite core is attached to the DC cable; a first cable part of the DC cable on the AC adapter side of the of the ferrite core, and a second cable part of the DC cable on the opposite side of the ferrite core as the AC adapter, are stored so that they do not overlap; and the bundled part is formed in the second cable part.