For CD32 / Amiga / C= / Atari Joysticks to USB adapter
Amiga Joystick & RetroPie | Planet4
Competition Pro USB Joystick + '99 Best of C64 Classix®' Games Collection, Jöllenbeck GmbH, Story - PresseBox
9 Pin Joystick to USB Adapter
Build a USB Adapter for Retro Joystick and use it on your PC, MiSTer or Amiga A500 Mini - YouTube
USB adapter for DB9 joysticks - (Amiga,Atari,Commodore,C64,MSX,SMS,emulators...) | eBay
Homemade USB adapter for 9 pin Atari C64 Amiga Joysticks - YouTube
Competition Pro Extra USB Joystick - Amiga Shop
Retronicdesign - New USB DB9 Joystick Adapter for your 30... | Facebook
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
THEJOYSTICK
pagetable@mastodon.social on X: "[UPDATE] Converting the “Competition Pro Extra USB” to C64/Amiga/Atari DB9 https://t.co/V7GpznRbNr The post now includes the new “V1.2” pinout and was updated with the use of a joystick extension
TIKUS USB Mouse / Joystick adapter (for Amiga, ST, GEOS)
UNITHOR - A Brand New Joystick For Retro Computers by UNI-joy — Kickstarter