Topic: Dummy housing for expansion boards
Looking at regular pc cases, the rear expansion slots (often no more than 7) struggle to accomodate a scheme of multiple analog i/0 expansion boards, especially with a GPU blocking at least 2 slots.
Cramming all boards into the remaining real estate causes thermal issues, so I am looking at housing the expansions externally (e.g. AI4S/192 AIO, AEB4-I etc). Cable length calls for vicinity placing (I would drill holes if need be), I was going to manufacture a case accomodating the dummy slot connectors holding the expansion boards in place, such cases are being marketed but they are expensive due to (I assume) connectivity to the mainboard, something I wouldn't be needing.
Is there a template/idea/product I overlooked, for this purpose? thanks.