There is really very little to it.
Left board is the network switch.
Right board is a choke filter plus AC/DC converter providing two power feeds to switch board. Thin black cable takes clock to switch board.
Both filter and AC/DC converter are bypassable via DC jack when external PSU connected.
Similarly clock module bypassable by external clock signal.
There is very little internally in any of these esoteric switches.
What benefit, if any, such a switch would provide is discussed in detail on the other thread linked above.
A Cisco 2960 has the same logical components on two boards too…