Adjustable riser cage for varying length adapters

A design structure tangibly embodied in a machine readable storage medium for designing or manufacturing an adjustable riser cage, the design structure comprising:

• an adjustable riser cage configured to retain varying length adapter cards comprising:
• a riser portion comprising a riser base and a riser side surface perpendicular to an exterior surface, the riser side surface and exterior surface configured to be at least partial exterior surfaces of an electronic system chassis, the riser base comprising:
• one or more guidance features and a plurality of first retention members;
• an extension portion slideably supported against only the one or more guidance members, the extension portion comprising:
• a second retention member configured to engage with a particular first retention member depending upon a length of an adapter card.

A method comprising:

• providing a adjustable riser cage configured to retain varying length adapter cards, the adjustable riser cage comprising:
• a riser portion comprising a riser base and a riser side surface perpendicular to an exterior surface, the riser side surface and exterior surface configured to be at least partial exterior surfaces of an electronic system chassis, the riser base comprising:
• one or more guidance features and a plurality of first retention members;
• a extension portion slideably supported against only the one or more guidance members, the extension portion comprising:
• a second retention member configured to engage with a particular first retention member depending upon a length of an adapter card.