Amiga 600 Mouse Port Extender/Port Saver / Joystick Port Adaptor.
 
Some mice and joysticks feature standard sized 9 way plugs which will won't fit into the Amiga 600 due to the hex screws on the side of the plug.
 
This adapter will allow standard 9way plugs to be plugged into the Amiga 600.
 
Features a 9-way female connector to 9-way male connector (wired straight through).
 
Installation: simply plug this adapter into the Amiga 600 mouse or joystick port then plug the mouse/joystick into the rear of the adapter. Ensure your computer is always switched off before plug/unplugging any devices.