Abstract: A computer-readable storage device rack is constructed to include a rack body adapted to support computer-readable storage devices at different elevations, the rack body having transverse sliding tracks at two opposite side panels thereof and a plurality of retaining spring strips respectively protruded from the side panels and adapted for locking computer-readable storage devices, and a plurality of elongated holding down plates respectively inserted into the transverse sliding tracks to force the retaining spring strips into engagement with respective locating holes of the loaded computer-readable storage devices.

Abstract: A hard diskdrive rack assembly is constructed to include a rack and hard diskdrive boxes detachably installed in respective receiving chambers in the rack. The rack has a base frame, the base frame having hooks and locating holes respectively provided at upright sidewalls and partition plates thereof, and a cover covering the base frame, the cover having locating holes and hooks respectively forced into engagement with the hooks and locating holes of the base frame. Each hard diskdrive box has a pivoted pull handle turned between an open position where can move a hard diskdrive in and out of the respective hard diskdrive box, and a close position where the respective hard diskdrive box is locked in the corresponding receiving chamber in the rack.

Abstract: A hard diskdrive rack assembly is constructed to include a rack and hard diskdrive boxes detachably installed in respective receiving chambers in the rack. The rack has a base frame, the base frame having hooks and locating holes respectively provided at upright sidewalls and partition plates thereof, and a cover covering the base frame, the cover having locating holes and hooks respectively forced into engagement with the hooks and locating holes of the base frame. Each hard diskdrive box has a pivoted pull handle turned between an open position where can move a hard diskdrive in and out of the respective hard diskdrive box, and a close position where the respective hard diskdrive box is locked in the corresponding receiving chamber in the rack.

Abstract: A baseplate holder for conveniently securing a mother board on a baseplate has a -shaped profile, the top face thereof being formed with a hook or a threaded hole, both vertical sidewalls being each provided on the end with a horizontal projection for insertion into the respective stamped hole on the baseplate. If a threaded hole is formed on the top face of the holder, the edges of a hole formed on the respective vertical sidewall can be formed with at least a tongue extending inwardly to support the screw passing through the threaded hole.