Removable hard disk module

A hard disk removable enclosure for accommodating a hard disk and capable of being inserted into a pair of accommodation slots of a rack, wherein the accommodation slots have threads disposed on an inner wall, the hard disk removable enclosure comprising:

• two side plates, disposed on two sides of the hard disk removable enclosure, that can be glidingly inserted into the accommodation slots;
• a front plate formed on a front surface of the hard disk removable enclosure to define a space together with the two side plates so as to accommodate the hard disk;
• and
• a screw body rotatably disposed on one end of the front plate, having an threaded engagement portion corresponding to the threads, wherein the threaded engagement portion is contacted and engaged with the threads by means of rotating the screw body, and through the rotation of the threaded engagement portion, the threaded engagement portion is moved along the threads, so that the hard disk removable enclosure is moved and fixed within the accommodation slots of the rack.