Expansion card securing device and housing

A housing, comprising:

• an expansion card securing device,
• a frame having a first engaging portion and a second engaging portion, wherein the first engaging portion and the second engaging portion are respectively located at two side walls of the frame;
• a securing member having a shaft portion and a securing portion, wherein the securing portion is connected with the shaft portion, the shaft portion has two salient portions protruding from the securing portion, the shaft portion is pivotally connected with the frame via the two salient portions, the securing portion is engaged with the first engaging portion to secure a plurality of expansion cards;
• an elastic member sleeved at the salient portion closer to the second engaging portion, wherein two ends of the elastic member abut the securing portion and the side wall having the second engaging portion of the frame, respectively;
• a pivot;
• an operating member having a rotating portion and an operating portion, wherein the operating portion is connected with the rotating portion and engaged with the second engaging portion, the rotating portion is pivotally connected with the salient portion closer to the second engaging portion via the pivot and abutting the side wall having the second engaging portion of the frame, when the operating portion is disengaged from the second engaging portion, the rotating portion is capable of eccentrically rotating with the pivot as the rotation axis to drive the shaft portion and the securing portion to move toward a direction away from the first engaging portion, so that the securing portion disengages from the first engaging portion and compresses the elastic member, whereby the rotation portion is capable of rotating with the shaft portion as the rotation axis to drive the securing portion connected with the shaft portion to rotate to release the expansion cards;
• and
• a plurality of securing slots provided between the first engaging portion and the second engaging portion, and the expansion cards are secured at the securing slots, respectively.