ArcadeR 9-pin (DB9) standard Retro Joystick - Black | eBay
GitHub - garymeg/Twin-DB9-2-USB-Retro-Joystick-adapter: a Dual db9 to usb adapter for use with TheC64 mini/maxi windows
Amazon.com: 9 pin to USB Dual Atari Joystick, Paddle, and Driving Adapter by iCode, DB9 Ports, Plus Edition : Video Games
Joystick Replacement Cable (DB9) – AutumnHippo
Jan Beta - I made a joystick adapter to connect old school DB9/Atari style sticks to modern USB hardware! Watch the video here: https://youtu.be/3ROE0ww2ReE #Retrogaming #Emulation #Joystick #Controller #Adapter #Retrocomputing #TheC64 #TheC64mini #
Atari joystick port - Wikipedia
UPDATE] Converting the “Competition Pro Extra USB” to C64/Amiga/Atari DB9 – pagetable.com
How to build an Amiga Joystick to USB adapter (DB9 to USB) - Retro32
Odyssey 2 Joystick Controller Gamepad Joypad DB9 Style Plug for DB9 Ports Only | eBay
USB Joystick Adapter from Retronic Design on Tindie