One console port had to serve a whole group
The original PlayStation had just two controller sockets. That worked for the common one-on-one setup, but a four-player game needed four controllers connected at once. Sony’s Multitap added those connections without requiring a redesigned console: it plugged into a controller port and provided four sockets for players.
More sockets meant more hardware outside the console
A controller socket is not just a hole in the case; it needs room for its connector and a way to carry the controller’s signals back to the PlayStation. The Multitap gathered four controller connections into one adapter, so its body had to spread out around the sockets. Its V shape made that cluster accessible, but also made the attachment conspicuous and bulky beside the console.
The tradeoff was practical: owners could add multiplayer hardware only when a game and a group of friends called for it, rather than every PlayStation having extra ports built in. The adapter’s shape was the visible cost of turning a two-player console into a four-player one without changing the console itself.
