When we designed the RAT we were using the older M7 camera.  As things go, around the time we finished the design the OpenMV team released the more powerful H7 camera.  We had already purchased ten M7s and they worked so we didn't bother upgrading to the H7.  We were recently asked about compatibility with the H7 camera so we bought one and found that it is drop in compatible in all ways, except the housing we designed does not fit the H7, due to the different dimensions for the removable camera module.  See video below: