Rx100V it has the hdmi bulkhead to connect the dp4 monitor. However it also work with integral flash that the rx100 has
That's not what you referred to in your earlier post; you advocated a "video only housing instead of building a monster to host the add on flash." I commented that they were unlikely to produce such a housing, to which you replied with a claim that Nauticam made a "video version" of the RX100 housing. The clear implication of the two posts was that Nauticam had made a "video only" housing in the past which they simply have not.