Abstract: A mobile rack includes a releasable casing including a front wall having opening elements; a frame member secured to the front wall and including an opening member aligned with the opening elements, a recess at a second side, and a well between the recess and the opening member; a spring-actuated door having a first side hingedly secured to a first side of the frame member and including an opening aligned with the opening member, and a latch at a second side; a spring-actuated lock activation mechanism including a key hole, a hollow shank aligned with the key hole, and a hollow lock element put on a rear portion of the hollow shank and having a projection on a first side; and a spring-actuated auxiliary lock mechanism pivotably secured to the second side of the frame member and including a hook in the well, and an extension.

Abstract: A redundant array of independent disks (RAID) module converted from a 2.5-inch specification to a 3.5-inch specification is characterized in that two 2.5-inch SATA hard disks are installed within a standard 3.5-inch SATA RAID module, so as to form a RAID having two hard disks or two stand-alone SATA hard disks for mounting the RAID module including two 2.5-inch hard disks within a 3.5-inch disk drive slot of a common computer housing, or any other devices that can receive a 3.5-inch disk drive.