Retention device for expansion cards

An enclosure assembly comprising:

• a rear panel having a plurality of expansion slots extending therethrough in a first direction, and forming a support platform located on an inner side thereof and extending along a second direction perpendicular to said first direction and substantially above said expansion slots,
• each of said expansion slots being of an elongated configuration along a third direction perpendicular to both said first and second directions;
• a plurality of expansion covers extending along the third direction and covering the corresponding expansion slots, respectively, each of said expansion covers including a bent portion seated upon the support platform;
• and
• a retention device pivotally mounted on said inner side of the rear panel, said retention device defining a pivotal axis along the second direction with a pressing block located on one side of said pivotal axis and downwardly pressing against the bent portions so as to cooperate with the support platform to sandwich said bent portions therebetween, and a resilient portion having a locking device located on the other side of said pivotal axis, the resilient portion being elastically deformable and detachably fastened to the rear panel by said locking device so as to hold the retention device in position without rotation.

An enclosure assembly comprising:

• a rear panel having a plurality of expansion slots extending therethrough in a first direction, and forming a support platform located on an inner side thereof and extending along a second direction perpendicular to said first direction and substantially above said expansion slots;
• each of said expansion slots being of an elongated configuration along a third direction perpendicular to both said first and second directions;
• a plurality of expansion covers extending along the third direction and covering the corresponding expansion slots, respectively, each of said expansion covers including a bent portion seated upon the support platform;
• and
• a retention device pivotally mounted on said inner side of the rear panel, said retention device defining a pivot axis, along the second direction, with a pressing block downwardly pressing against the bent portions so as to cooperate with the support platform to sandwich said bent portions therebetween, and a resilient portion having a locking device, resilient portion being elastically deformable and detachably fastened to the rear panel by said locking device so as to hold the retention device in position without rotation.