Patent ID: 7564697

Claim:
A fastening device for fastening an interface card of a computer, the computer including a motherboard, a casing and the interface card, the motherboard including a motherboard slot, the casing including a casing opening and a locking portion, the interface card including a fastening part, wherein the fastening part is disposed on the interface card and is exposed outside the casing opening, and when the interface card is inserted into the motherboard slot, the fastening part of the interface card is near the locking portion of the casing, the fastening device comprising: a positioning box disposed on the casing and having a box opening and a positioning slot; and a securing member movably disposed within the positioning box and including a pushing part and a securing part coaxially connected to the pushing part, wherein the pushing part pushes the securing part to pass through the positioning box and expose outside the box opening, so that the securing part presses the fastening part of the interface card against the locking portion of the casing, and the interface card is inserted into the motherboard slot tightly, wherein when the pushing part is drawn back into the positioning box, the interface card is disassembled from the motherboard slot.