It is not yet approved, but it should work as all other DB9 legacy (C64, 9-pin, Atari port) joystick controllers, via DB9 to USB port adapters.

Found here:

• Competition PRO Retro
  • https://icomp.de/shop-icomp/en/shop/product/competition-pro-retro.html
• Joystick Competition Pro DB9
  • https://www.amedia-computer.com/en/accessories/163-joystick-competition-pro-db9.html