Data storage device and circuit board to be attached to data storage device

A data storage device, comprising:

• a disk medium for storing data, the disk medium being driven to rotate about a rotation axis;
• an actuator attached with a head for reading data from the disk medium and for writing data to the disk medium, the actuator moving circularly about a circular movement axis;
• an enclosure case including a base with a predetermined width and a cover, the base having an opening for containing the disk medium and the actuator, and the cover for closing the opening;
• a circuit board attached to a bottom surface of the base, the circuit board being mounted with at least an element for controlling rotational drive of the disk medium and for controlling circular movement of the actuator;
• a plurality of fastening members for fastening the circuit board to the base;
• and
• two acceleration sensors which are respectively located adjacent to two of the fastening members in a region formed by connecting the plurality of fastening members.

An apparatus, comprising:

• a data storage device including an enclosure case for containing part of a spindle motor and a circular movement actuator, the spindle motor being for rotating a disk storage medium, the circular movement actuator being for controlling a position of a read and write head which reads data from the disk storage medium and writes data to the disk storage medium;
• a circuit board attached to the data storage device;
• and
• an acceleration sensor attached to the enclosure case by a plurality of fastening members and located at a position closer to a center of the circuit board than the fastening members, the position also being in a vicinity of a position at which one of the fastening members is located, the acceleration sensor detecting vibrations applied to the data storage device in a rotation direction.