these are mounted in the back of @scrmblr404 (insta) mustang, they are part of the quiet racing club, im guessing they are some sort police countermeasures. the image is from a reel on @rly.slo apologies if this is the wrong sub but i feel that this community has the most diverse info on anything mounted on a rack
I had to guess it’s an antenna multiplex/splitter. So they only have 1-2 antennas, and pass it to the radios. Rather then 6 antennas.
The switch could be anything. But my money’s on POE leds, or just using ethernet for ease of plug, or just something to look at that looks cool, but serves no purpose