Does anyone know what the general consensus is about these kind of newer recessed wall plates (essentially dressed up holes in the wall) for running low voltage cables, typically for wall mounted TVs?
I know that running any high voltage through such plates (including a TV power cord) is right out, and should never be done. But assuming no high voltage is run, are there code issues with having essentially two holes in an interior wall? What about exterior or garage walls?
How about cable ratings? I know there are CL3, in-wall rated HDMI cables and such, but are those required for situations like this, or only permanent in-wall situations with regular boxes and jack plates on both ends?