Abstract: A hard disk drive assembly for a portable computer includes a conventional small form factor hard disk drive which is mounted in a rigid housing; the housing is mounted to the portable computer chassis. The hard disk drive itself is shock and vibration protected from the housing by a set of thin shock pads of a shock absorbing material such as a viscoelastic polymer. The pads are e.g., 1 or 2 mm thick, typically no more than 5 mm thick. The pads are each relatively small in surface area and are interposed between all surfaces of the hard disk drive and the opposing surfaces of the housing, thereby suspending the hard disk drive in the housing with shock and vibration protection, without the shock pads themselves occupying a significant volume.