Patent ID: 7596001

Claim:
A retention assembly for assembling an expansion card, the expansion card being mounted to an expansion card bracket attached to an enclosure, the retention assembly comprising: a foldable holder being rotatable relative to the enclosure, and the foldable holder to resist the expansion card bracket when the retention assembly is in a closed state; a resisting handle being slidable relative to the enclosure, and the resisting handle to prevent the foldable holder from rotating when the retention assembly is in the closed state, and for allowing the foldable holder to rotate when unlatching the retention assembly; and a first elastic member for providing torsion force for forcing the foldable holder to rotate, including an end securely connected to the foldable holder and an opposite end fixed relative to the enclosure; a second elastic member for providing an axial force, the second elastic member is compressed to position the resisting handle when the retention assembly is in the closed state; wherein the second elastic member comprises two compressed springs, and the first elastic member comprises two torsion springs.