US Patent 9829939 Hard disk mounting device

A device for mounting a hard disk in a server or other housing includes a frame, a hard disk, and a rotatable element. The frame defines a receiving space thereon and includes an end wall. The hard disk is slidably received in the receiving space. The hard disk includes a fastening element facing to the end wall. The hard disk is slidably attached to the end wall and the fastening element is locked to the end wall. The rotatable element is attached to the end wall and can rotate from a first position to a second position to abut the fastening element. The rotatable element can be pressed against the fastening element to unlock and the hard disk can be slidably detached from the end wall.