Patent ID: 6961202

Claim:
A data storage device, comprising: an enclosure case including a base and a circuit board attached to an outer surface of the enclosure case, the enclosure case containing a spindle motor for rotating a storage medium, and a circular movement actuator for controlling a position of a read and write head for reading data from the storage medium and for writing data to the storage medium, the circuit board having an interface cable connector for establishing a connection to a host; the circuit board being located between the interface cable connector and the spindle motor and attached to the enclosure case by use of a plurality of fastening members, and the circuit board having an acceleration sensor attached thereto in a vicinity of one of the fastening members, the acceleration sensor being for detecting vibrations in a rotation direction in a plane along the circuit board; and the circuit board having a surface area that is equal to or less than half of a surface area of the base.