The chassis 3 is a rigid structure (e.g., sheet metal) that is to support the system board and, in some examples, enclose and protect the system board 2 (see FIGS. 1 and 9). The chassis 3 may also be referred to as a server tray, a housing, etc. The chassis 3 may have any desired shape and configuration, such as a tray, box, etc. Although only a bottom wall and one side wall of the chassis 3 are illustrated in the figures to avoid obscuring details, the chassis 3 may also have a top wall (lid) and additional side walls.
The bay 600 includes structures that define a region within the computing system that can receive a pluggable module 700. In particular, the bay 600 may include a bay entrance 603, which is a structure separating an interior of the chassis 3 from an exterior of the chassis 3, and which includes an opening 604 through which the pluggable modules 700 may be inserted into the bay 600 (see FIGS. 1 and 9). In the examples illustrated in the figures, the bay entrance 604 is one of the walls of the chassis 3, but in other examples it could be a separate structure. The bay 600 may also include alignment members 601, such as guide rails, groves, slots, tabs, and the like, which engage with the pluggable module 700 to constrain its movement to guide it into a desired position as the pluggable module 700 is inserted into the bay 600 (see FIGS. 1 and 9). The alignment members 601 may include a pin guide 605, which guides a locking pin 627.
