Released December 3, 1994 in Japan and September 9, 1995 in North America. Models SCPH-100x, SCPH-3000, SCPH-3500, SCPH-500x, SCPH-550x, SCPH-700x, SCPH-750x, and SCPH-900x.
The wifi antenna is used to connect to the controller and wifi. So if you're controller is not connecting or it drops the connection when you get more than about 5 ft away you might have a bad antenna.