The recognizability of a vehicle peripheral environment may be enhanced. The wire harness extended from the mating member is installed along the link. The flow tube projects beyond the case end and is sealably coupled to a cone connect element in the case end. Phase errors are also determined from the timing relationship between changing points of a signal synchronized with the N phase clocks and each clock of the N phase clocks. In one embodiment, a circuit board which controls positioning of a head of an HDD includes a connector connected to an external voltage 5V supply segment and also to an external voltage 12V supply segment, a regulator which generates 3. The heat pipe includes a heat pipe body containing a working fluid; and a louvered cooling fin adjacent to one end of the heat pipe body, the louvered cooling fin extending outward from a surface of the heat pipe body.