A computer enclosure includes a base (70), a support plate (20), and a front plate (10). The support plate is secured to the base. The front plate is secured between the base and the support plate. The front plate defines an opening (12) therein for receiving a data storage device. A retaining clip (16) is bent from the front plate, and opposite to and generally parallel to the support plate. The retaining clip together with the support plate is in use for supporting the data storage device.