Atari 2600 Keypad Control Set (Atari 2600) (Pre-Played - Accessory)

J2Games.com

$ 19.99 
SKU: A2600KCSAC5

Atari's keyboard controllers could be joined, as shown, or used individually. These controllers accepted overlays and would be restyled and resized several times after to accommodate software such as Atari's Star Raiders and the Children's Television Workshop series of games.