Hard disk and housing thereof

A housing of a hard disk, used for accommodating a storage module having a circuit board, including:

• a first cover member, used for accommodating the storage module and including a first cover plate and a pair of first lateral walls extended from edges of the first cover plate, wherein the pair of first lateral walls are oppositely arranged, each of the first lateral walls is formed with a support piece and a latch hook respectively protruded towards the interior of the first cover member, the distal end of the latch hook is spaced away from the first lateral wall, and the support piece and the latch hook on each of the first lateral walls are not arranged at same horizontal level in a direction perpendicular to the first cover plate, and edges of a circuit board are clamped between distal ends of the latch hook and the support piece of each of the first lateral walls;
• and
• a second cover member, disposed at the outer side of the first cover member and closely engaged with the first cover member,
• wherein an outer surface of the first cover member is formed with a buckle hole on each of the first lateral walls, a pair of second lateral walls are oppositely arranged, each of the second lateral walls is formed with a protruding hook protruded towards the interior of the second cover member, the protruding hook is corresponding to the buckle hole, and the protruding hook is buckled in the buckle hole.