Fastening device for expansion cards

A fastening device for fastening an expansion card in a slot, wherein the slot comprises a clip unit disposed at each of two ends of the slot for clipping two side edges of the expansion card inserted in the slot, the device comprising:

• a top pressing unit;
• and
• two side fastening units connected respectively to two ends of the top pressing unit, each of the two side fastening units comprising an opening, wherein the two side fastening units press and fasten the two clip units respectively when the two clip units at the two ends of the slot respectively pass through the openings of the two side fastening units;
• wherein the top pressing unit comprises a first top pressing unit and a second top pressing unit, one end of the first top pressing unit is connected to one end of the second top pressing unit, the other end of the first top pressing unit is connected to one of the two side fastening units, and the other end of the second top pressing unit is connected to the other one of the two side fastening units;
• wherein the side fastening unit comprises a first side fastening component and a second side fastening component;
• wherein the first side fastening component and the second side fastening component clamp two opposite surfaces of the slot.

A fastening device for fastening an expansion card in a slot, wherein the slot comprises two clip units, a base and two side portions connected respectively to two ends of the base, each of the two side portions comprises an outer surface and an inner surface, and the two clip units are disposed respectively on the outer surfaces of the two side portions for clipping two side edges of the expansion card inserted into the slot, the device comprising:

• a main body comprising:
• a fastening board;
• two connect boards connected respectively to two opposite side edges of the fastening board, wherein an accommodating space is formed between the fastening board and the two connect boards;
• two protrusions disposed respectively on the two connect boards, wherein the two protrusions face each other and protrude from the two connect boards in opposite directions, wherein one side edge of each of the connect boards is connected to the fastening board, and the other side edge of each of the connect boards is connected to the protrusion;
• and
• an elastic cushion disposed in the accommodating space of the main body, wherein the protrusions engage the inner surface of the side portion and the elastic cushion compresses the clip unit on the outer surface of the side portion when the main body sleeves over the side portion and the clip unit of the slot to place the side portion and the clip unit inside the accommodating space of the main body.