Is this a fake controller? My physics teacher gave me his PS3 and controllers before he switched schools and this weird button could either be a mod (as indicated by the modded
COITROZR PS4 Controller Paddles, Strike Pack PS4, PS4 Scuf Aufsatz, Rücktasten Ansatzstück für PS4-Gamepad, Scuf Controller PS4 : Amazon.de: Games
Scuf Gaming reveals official NBA 2K League controller - NBA 2K19 - Gamereactor
SCUF Ghosts Kollektion für den Hybriden | Scuf Gaming