Controller for the Atari 5200. This is an official Atari 5200 Joystick Controller! It has a Clean, Sleek, and Classic Atari Design, and built in Keypad! Originally it was designed for use on the Atari 5200, and is NOT COMPATIBLE with the Atari 2600 or Atari 7800! This is an authentic Atari product, and not some unknown, unheard of aftermarket brand! This type of controller is RARE, and difficult to find!