According to this FAQ for the link cable, no more than two setups can be connected to each other, sorry.
However the multi tap peripheral allowed up to four players to connect to each controller port. That means up to 8 players on one system and 16 players on two setups connected with the link cable. Perhaps some titles will allow you to at least get four players over two setups (split screen).
However the multi tap peripheral allowed up to four players to connect to each controller port. That means up to 8 players on one system and 16 players on two setups connected with the link cable. Perhaps some titles will allow you to at least get four players over two setups (split screen).