An exemplary fixing apparatus is for mounting a hard disk drive having a
plurality of holes in sidewalls thereof. The fixing apparatus includes a
first side plate, a bracket, a locking tab, and a transverse bar. The
bracket includes an end plate, and a second side plate perpendicular to
the end plate. The first side plate is pivotably attached to a free end
of the end plate of the bracket. The transverse bar is pivotably attached
to a free end of the second side plate of the bracket. The locking tab is
attached to an outside of the first side plate to detachably engage with
the transverse bar.