USBJoy2.0E adapter - Extended Version. Connect your Atari Amiga C64 joystick to PC! Develop your own usb device! - Polish electronics for 3D printers, CNC, robotics, retro computers
The C64 Joystick USB RETRO GAMES new and unopened | eBay
Ultimate fix for the C64 Mini Joystick - Use any Atari or C64 Original joystick! - YouTube
Use C64 Mini USB joystick on PC with VICE? : r/c64