USBJoy2.0 - adapter. Connect your Atari Amiga C64 joystick to PC! Develop your own usb device! - Polish electronics for 3D printers, CNC, robotics, retro computers
Atari Joystick USB Adaptor – Waiting for Friday
Retro 9 Pin Joystick to USB Converter : 4 Steps (with Pictures) - Instructables
UPDATE] Converting the “Competition Pro Extra USB” to C64/Amiga/Atari DB9 – pagetable.com
USB Joystick Adapters – breadbox64.com
Atari Retro Joystick USB adapter – Make or Buy – 2 and 4 ports
Tindie Blog | Vintage Joystick Adapter So They Function as USB Controllers
ADVANCED COMMODORE C16 / PLUS 4 / TO C64 / AMIGA JOYSTICK CONVERTER ADAPTER | eBay
USB Joystick Adapter from Retronic Design on Tindie
C64 Joystick Adapter - Share Project - PCBWay
C64 USB Joystick Adapter
Build a USB Adapter for Retro Joystick and use it on your PC, MiSTer or Amiga A500 Mini - YouTube
Resurrect your DB9 joystick, Mayflash USB Adapter Review – Vintage is The New Old
Classic Atari Joystick to USB Adapter - YouTube
Retronics USB Joystick Adapter and Other Coolness with V-USB | Code and Life
Arduino Project: Commodore 64/Amiga, Atari 2600/XL/ST, ZX Spectrum Joystick to Windows/Linux (RetroPie) USB | jfrmilner's Tech Blog
C64 Joystick Adapter | Hackaday
USB Joystick Adapters – breadbox64.com
The C64 Joystick Adapter
USB Joystick Adapters – breadbox64.com
Dual Joystick USB Adapter
How to Convert Any Commodore Joystick from 9-pin to USB using The C64 Joystick - YouTube
Homemade USB adapter for 9 pin Atari C64 Amiga Joysticks - YouTube