Mounting apparatus for expansion card

A mounting apparatus comprising:

• a chassis comprising a bottom plate, a front plate connected to the bottom plate, and a positioning member attached to an inner surface of the front plate;
• a mounting member, adapted to secure an expansion card, comprising a flange;
• a mounting tray, attached to the bottom plate, comprising a front panel and a retaining panel connected to the front panel;
• and
• a securing device comprising a first securing member and a second securing member, the first securing member rotatably attached to the front plate, and the second securing member rotatably attached to the first securing member;
• the first securing member is rotatable relative to the front plate in a first axis that is substantially perpendicular to the bottom plate;
• and the second securing member is rotatable relative to the first securing member in a second axis that is substantially parallel to the first axis;
• wherein the securing device is rotatable relative to the front plate between a close position and an open position;
• in the close position, the first securing member abuts the flange, to position the flange between the first securing member and the retaining panel, the second securing member abuts the first securing member, and the positioning member abuts the second securing member, to prevent the second securing member from being disengaged from the first securing member;
• and in the open position, the second securing member is disengaged from the positioning member and the first securing member, and the first securing member is removed from the flange;
• and the first securing member comprises a first base, and the first base is substantially parallel to the retaining panel when the securing device is located in the close position;
• a mounting panel, securing the first securing member, extends from the front plate;
• and when the securing device is rotated to the open position from the close position, a direction of the first securing member rotated relative to the mounting panel is opposite to that of the second securing member rotated relative to the first securing member;
• a first pivot post extends from the first base, and a first pivot portion is located on the mounting panel and engaged with the first pivot post;
• and an arm extends from the mounting panel, the second securing member comprises a resisting panel, and the positioning member is located between the resisting panel and the arm.