Computer enclosure adapted for mounting different types of transfer cards

A computer enclosure, comprising:

• a chassis having a rear wall, an expansion slot defined in the rear wall, a detachable shielding cover formed on the rear wall proximate to the expansion slot, a line of weakness defined around a periphery of the shielding cover for facilitating removal of the shielding cover from the rear wall, one end portion of the rear wall is recessed inward to form a window, and the recessed portion has a front panel parallel to the rear wall and a sidewall perpendicular to the front panel;
• a transfer card secured in the chassis, the transfer card having a circuit board perpendicular to the rear wall;
• a mounting bracket having a width substantially equal to a length of the expansion slot, the mounting bracket being secured to the rear wall of the chassis, the mounting bracket comprising a base panel abutting against the front panel of the recessed portion, and a first sidewall adhered to the sidewall of the recessed portion;
• a PCI card secured to the mounting bracket and perpendicularly attached to the transfer card;
• and
• a receiving space defined between the shielding cover and the PCI card, for receiving a connector between the mounting bracket and the circuit board of the transfer card.