PS/2 or USB mouse, keyboard on a J720?

@shadow master, to be honest i dont have any adapter i just bussy with cabels and stuff(not the official way)

but dont you have an drawing or something so i can solder the cable? i dont really understand the .jpg thats in the package from mouser on your site.. i am willing to cut my sync cable in two because i never use it(infrared port)
but then i have to sure that it will work..

ore is it maybe possible to buy a male connector and change my mouse so i can plug in to the sync cable?
i already have a mouse without connector and i have 4 wires, black, broun, orange and red..
maybe you could tell me witch coller has to be put into witch number on the sync cable.
then i am able to make one myself.

i hope you are able to follow me my englisch is not that good, thanks