Patent ID: 7391609

Claim:
An apparatus comprising: a substrate having a plurality of disk-drive connectors including a first disk-drive connector and a second disk-drive connector that are adapted to be connected to a first disk drive and a second disk drive, respectively; wherein the disk drives each have a first major face A, a second opposite major face B wherein face B includes a circuit card, and a first edge C perpendicular to a top surface of the respective connector for that drive; wherein the disk drives each have an actuator, and an axis of rotational mass of the disk drive that is parallel to an axis of the disk-drive's actuator and perpendicular to face A; wherein the first disk-drive connector and the second disk-drive connector are positioned at least as close to one another as to other disk-drive connectors and positioned such that when connected to their respective disk drives the first disk drive's major face A and second disk drive's major face A are positioned facing each other and substantially parallel to each other and their center points are offset to each other, and the first edge C of the second disk drive is aligned substantially along the axis of rotational mass of the first drive.