Abstract: A host assembly having a docking bay for receiving an integrated computer module is disclosed. The docking bay includes a cavity for receiving and grossly aligning the module, a host connector located at a back end of the cavity at a position where it is aligned with the module connector when the module is received in the cavity, and a projecting member located at an XY location at the back end of the cavity for helping to align the module connector with the host connector. The projecting member may also provide a locking function and may be located at an asymmetric XY location for ensuring that the cavity only receives an un-keyed module that is in the correct orientation.