If you order one of these treat it very gently, be careful how you pack it when traveling, etc. My first one broke in 4 months (the wires internal to the rubber cable enclosure shorted - so the screen would drop out certain colors). And then, when I ordered and paid for a replacement, the wrong adapter was shipped to me. The sales web page does not bother to mention that there are different versions of the PowerBook G4, which use different types of video ports (mini-DVI and mini-VGA). Make sure you know which one you need before ordering. An improved sales web page would at least show all the VGA adapters in one place, so one could see all the choices.