With this adapter you can connect 2 classic joystick with DB9 plug (amiga/atari c64/sega master system etc) to ALL modern Computers with Any OS. Its a classic HID device, so NO DRIVER REQUIRED, works with ALL linux/windows/macos/android.

its very COMPACT (6,5cm) and need NO EXTRA (except joystick themselves)
its the IDEAL soution for compact systems with very few USB ports, like laptops/ raspberryPi / tablets etc

and for DUAL PLAYER games

you can use it to connect your old (or new) Classic Retro joystick, and play with Emulators (WinUAE/MAME/Atari etc)