USB Mouse adapter

[psxphill]

If it was just the one port instead of two it would be better, could fit it along the back with the other ports.

He also sells this
 
http://www.ebay.com/itm/Amiga-USB-mouse-adapter-Brand-new-/120814385754?pt=UK_VintageComputing_RL&hash=item1c21193a5a
 
For a mouse with only a PS2 connector you'd need an adapter as this only has the USB connector. Plus you can only have a mouse or joystick plugged in.
 
Neither of them actually talk USB, they expect the mouse to fall back to PS2 mode even though it's plugged in via USB.