Abstract: An electronic device is provided, and the electronic device includes a main body, an actuating module, a first linkage, a first casing and a thermal dissipating module. The actuating module is disposed in the main body. One side of the first linkage is connected with the actuating module. The first casing is connected with the other side of the first linkage. One side of the thermal dissipating module is disposed at the main body and the other side of the thermal dissipating module is disposed at the first casing. The actuating module controls the first linkage to rotate to separate the first casing from the main body so that the thermal dissipating module is exposed from the main body and the electronic device is switched from a closed state to an open state.

Abstract: An interface card installation apparatus for fixing an interface card includes a base and a rotating pressing means. The base may be assembled on a case. The case has an interface card flange. The interface card has a bracket. The bracket is contacted with the interface card flange. The base has a coupling portion and the rotating pressing means may be rotated to couple with the coupling portion of the base for fixing the rotating pressing means and the bracket pressed.

Abstract: A computer system and a multimedia input device thereof are disclosed. The multimedia input device is used for providing a shortcut input of the computer system. The computer system further includes a computer host and a display device, and it can execute several programs. The multimedia input device includes a body and a plurality of hot keys. The main body is connected to the computer host via wire or wireless. The hot keys are disposed on the body. Each of the hot keys corresponds to one predict program to be executed.

Abstract: An electronic device has a removable module installed inside. The removable module includes a first surface and a second surface. The first surface is adjacent to the second surface. At least one first fastener is disposed on the first surface. At least one second fastener is disposed on the second surface. A printed circuit board and at least one track are installed in the housing. At least one rail has at least one third fastener and fourth fastener. The third fastener is inserted into the first fastener. The fourth fastener is inserted into the second fastener. The rail is disposed between the track and the removable module.

Abstract: An interface card installation apparatus for fixing an interface card includes a base and a rotating pressing means. The base may be assembled on a case. The case has an interface card flange. The interface card has a bracket. The bracket is contacted with the interface card flange. The base has a coupling portion and the rotating pressing means may be rotated to couple with the coupling portion of the base for fixing the rotating pressing means and the bracket pressed.

Abstract: An electronic device has a removable module installed inside. The removable module includes a first surface and a second surface. The first surface is adjacent to the second surface. At least one first fastener is disposed on the first surface. At least one second fastener is disposed on the second surface. A printed circuit board and at least one track are installed in the housing. At least one rail has at least one third fastener and fourth fastener. The third fastener is inserted into the first fastener. The fourth fastener is inserted into the second fastener. The rail is disposed between the track and the removable module.