Abstract: An engaging and ejecting device for expansion module/cell of portable computer, including a control member and a switch member pivotally disposed on one side of a housing of the portable computer. The control member and the switch member drivingly cooperate with each other. One side of the expansion module is disposed with a block body. After the module is inserted into the portable computer housing, the control member, switch member and control block drivingly cooperate with each other to engage the module inside the computer housing. When the switch member is pushed outward, the module is ejected out of the computer housing.

Abstract: An insertion cartridge for hard disc of a portable computer. The cartridge includes an upper cover and a lower cover mated with each other. Two sides of each of the upper and lower covers are formed with at least one fixing plate. When the upper cover is assembled with the lower cover, the fixing plates are firmly overlapped on each other. After the hard disc is enclosed in the insertion cartridge, the insertion cartridge with the hard disc is fitted into the portable computer and electrically connected with the hard disc connector of the portable computer. Then, the insertion cartridge with the hard disc is locked with the internal component of the portable computer. In addition, multiple resilient plates are disposed on two lateral sides of the lower cover. When the upper and lower covers are assembled, the resilient plates contact with the inner wall of the upper cover to serve as contact points.