I'm thinking the same thing thats very misleading, Looks like a PC PS/2 Brandy ncc1701 at mindspring.com wrote: > I only see one USB port on the back. > It's a shame he doesn't show you the other side. I'd bet, very > strongly, that it's actually a PS/2 to USB adapter that allows > dual-use mice, likely by Microsoft, to use USB or PS/2 ports. A PS/2 > port looks very much like an ADB port, the only difference is the > angle of the little middle plastic post. Someone who knows German > better than I do might drop him a line and see if he can give a > picture of the other side. You'll notice the Mouse symbol on the > seller's picture on the PS/2/ADB end, and the USB symbol on the USB > end. I'd bet if it were ADB you'd see the typical ADB symbol.