Dell Inspiron 1420 640M 500M 17R N4050 N5720 3531 (90W) Notebook Charger Adapter 19.5V 4.62A 7.4 x 5.0mm DELL 19.5V 4.62A 7.4 x 5.0 mm Laptop 90w POWER AC Adapter Charger Dell 65W / 90W 19.5V 3.34A 4.62A (7.4*5.0) XPS Vostro Inspiron Latitude E6400 E6440