Computer enclosure with interchangeable I/O plate

A computer enclosure comprising:

• a rear plate defining a first through opening therein;
• a bottom plate perpendicularly connected to the rear plate;
• a mounting bracket secured on the rear plate to cover the first through opening of the rear plate, the mounting bracket comprising a top wall perpendicular to the rear plate and a front wall parallel to the rear plate, the top wall forming an engaging tab thereon, the front wall defining a second through opening therein corresponding to the first through opening of the rear plate;
• and
• an interchangeable I/O plate configured for covering the second through opening of the front wall of the mounting bracket, the I/O plate defining a securing hole therein for receiving the engaging tab of the mounting bracket, a locking piece being formed on the I/O plate and together with the I/O plate sandwiching an edge of the second through opening of the front wall of the mounting bracket therebetween;
• wherein the engaging tab extends towards a first direction parallel to the rear plate to engage in the securing hole, and the locking piece together with the I/O plate is movable towards a second direction opposite to the first direction to sandwich the edge of the second through opening of the mounting bracket;
• the top wall of the mounting bracket defines a mounting hole therein, the I/O plate defining a second mounting hole therein, the mounting hole of the top wall of the mounting bracket and the second mounting hole of the I/O plate being configured for receiving a mounting member therein to thereby securely mount the I/O plate on the mounting bracket;
• and the I/O plate defines a plurality of cutouts, the computer enclosure further comprising a shielding plate which is secured on the I/O plate and forms a plurality of resilient clips and finger pieces for inserting through the cutout of the I/O plate to electrically touch the front wall of the mounting bracket.