Abstract: In a support frame of an interface card module, two module locks are disposed thereon, both the support frame and the module locks having enlarged operational holes for easy operation for a user. To install the interface card module on a housing of an electronic device, the module locks are pushed and moved by the housing and withstood by the housing. The user may directly operate the module locks through the enlarged holes to disengage the module locks from the housing and to uninstall the interface card module. The interface card module further uses a card lock pivoted on the support frame for locking the interface card at the support frame.

Abstract: A riser card module includes a frame body, a carrier plate connected to the frame body for abutment against first surfaces of positioning plates of fixing brackets of expansion cards, a riser card disposed on the frame body and having a plurality of expansion slots for insertion therein of the expansion cards, respectively, and a limiting unit rotatable relative to the carrier plate about an axial direction which is perpendicular to a longitudinal direction of the carrier plate for abutment against second surfaces of the positioning plates of the fixing brackets of the expansion cards so as to restrict movement of the expansion cards relative to the riser card.

Abstract: A casing includes a casing module and a support module. The casing module includes two side plates spaced apart from each other, a top-plate unit disposed between and perpendicular to the side plates, and a bottom plate spaced apart from and parallel to the top-plate unit. The side plates, the top-plate unit and the bottom plate define a first accommodating space for receiving a first electronic device. The support module is disposed between the top-plate unit and the bottom plate, and is removably caught in the top-plate unit to divide the first accommodating space into two second accommodating spaces for receiving two second electronic devices that differ in size from the first electronic device.

Abstract: A computer case includes a first fixing board, a second fixing board and a fixing module. The first fixing board and the second fixing board form a space for inserting a removable device. The second fixing board includes a hole. When the removable device is inserted into the space, the hole of the second fixing board can be aligned with a fixing aperture of the removable device. The fixing module includes a U-shaped spring and a spring holder. A fixing segment is disposed at one end of the U-shaped spring. When the U-shaped spring is placed in a spring trough of the spring holder and the fixing module is fixed on the second fixing board, the fixing segment is moved with the rotating of the U-shaped spring in the spring trough to be inserted into or removed from the fixing aperture of the removable device.

Abstract: A computer case includes a first fixing board, a second fixing board and a fixing module. The first fixing board and the second fixing board form a space for inserting a removable device. The second fixing board includes a hole. When the removable device is inserted into the space, the hole of the second fixing board can be aligned with a fixing aperture of the removable device. The fixing module includes a U-shaped spring and a spring holder. A fixing segment is disposed at one end of the U-shaped spring. When the U-shaped spring is placed in a spring trough of the spring holder and the fixing module is fixed on the second fixing board, the fixing segment is moved with the rotating of the U-shaped spring in the spring trough to be inserted into or removed from the fixing aperture of the removable device.