I have a Logitech wireless mouse given to me last Xmas as a present from my son. Its transmitter has a USB connection and came with a ps2/ usb adapter so that it can be used with either USB or PS2. I use it with my KVM. I am afraid there is not detail of where you can get one from on the adapter. If your mouse/keyboard are Logitech I suggest you contact them. Also a look via Google might help.