Abstract: A rotating-type data storage device anti-shake mechanism is proposed, which is designed for use with a rotating-type data storage device, such as a hard disk drive or an optical disk drive, for providing the data storage device with an anti-shake capability during operation. The proposed anti-shake mechanism is characterized by the arrangement of a set of weighty members symmetrically about the rotating axis of the disk on the enclosure of the data storage device, which can help increase the mass inertia torque around the disk's rotating axis and thereby reduce the angular velocity of the rotating disk, thus effectively reducing shake on the data storage device. This anti-shake feature allows a hard disk drive to have more reliable data read/write operations.

Abstract: A heat sink fixing assembly used for fixing the heat sink on a circuit board is provided, which includes a base and a fixing portion extending there-from, wherein the base is made of an elastic material with a slot formed thereon. When the heat sink extends into the slot and thus is pressed and held by the base fixed on the circuit board by the fixing portion, the heat sink fixing assembly is capable of accurately adjusting the force for clipping the heat sink.