Qualified PA-1900-02D laptop adapter is really a good choice for DELL Inspiron 6400, E1705 laptops and the compatible parts numbers have included PA-1900-02D,LADE195462B89,753182568829 and so on. As is known to all, mains supply is different from each other in different nations. Thereby, we have installed an upgraded switch mode inside to make this Dell PA-1900-02D AC adapter to be global compatible with input voltage from 100V to 240V.