A mounting apparatus includes a plate and a pressing member rotatably coupled to the plate. The plate includes a frame formed with a plurality of slit ports for respectively exposing PCI cards and a supporting portion for supporting bent portions of the PCI cards. The pressing member is configured for pressing the bent portions of the PCI cards, thereby sandwiching the bent portions of the PCI cards between the pressing member and the supporting portion. A handling member is actuated to drive the pressing member to enable positioning of the pressing member relative to the supporting portion. The handling member includes a main body and two arms extending from the main body. The two arms are inserted through two slots of the plate respectively and connected to two ends of the pressing member respectively.