eBay: Adapter to connect two joysticks Atari 2600 the PC via USB (NEW Dual Port PC Computer USB Port Controller Adapter for ATARI 2600 JOYSTICK) - Skooter Blog
Atari 2600 USB Joystick (Retro-link) - Stone Age Gamer
Gaming Joystick Controller for Atari 2600 Game Rocker with 4-Way Lever and Single Action Button Retro Gamepad - Walmart.com
Overview | AtariFruit 2600 Joystick | Adafruit Learning System
Ruitroliker Retro Classic Joystick Controller Gamepad for Atari 2600 Console System Black Dropship|Joysticks| - AliExpress