Electronic device

An electronic device for heat-dissipation of at least one of a hard disk drive (HDD), a memory module, and at least one interface card, the electronic device comprising:

• a heat-dissipation bottom plate;
• a metal carrier disposed on the heat-dissipation bottom plate and having an accommodating space that allows the HDD to be assembled therein, wherein the metal carrier has a first surface and a second surface respectively arranged at two opposite sides of the accommodating space;
• a plurality of first thermally conductive pads assembled to the first surface of the metal carrier, wherein the memory module and the at least one interface card are connected to the metal carrier through the first thermally conductive pads;
• and
• a second thermally conductive pad assembled to the second surface of the metal carrier, wherein the metal carrier or the HDD is connected to the heat-dissipation bottom plate through the second thermally conductive pad;
• wherein the HDD, the memory module, and the at least one interface card are in cooperation with the first thermally conductive pads, the metal carrier, the second thermally conductive pad, and the heat-dissipation bottom plate for heat-dissipation.