Abstract: The present invention relates to a storage apparatus of the computer, especially a floppy disk drive apparatus or a CD-ROM drive apparatus. A disk drive apparatus, comprises a disk drive, a body for incorporating the disk drive, wherein the body includes two side surfaces, a bottom surface connecting to the two side surfaces, a rear surface coupling the bottom surface and the two side surfaces, a cover for coupling the body, wherein the cover includes two side surfaces and an upper surface connecting to the two side surfaces, a front wall formed at the cover, wherein the front wall and the cover are formed in one body, and wherein the front wall is formed to be coupled to the upper surface of the cover, a hook formed at either of the two side surfaces of the body or the two side surfaces of the cover; and a seat formed at either of the two side surface of the body or the two side surfaces of the cover.