65W 19.5V 3.34A Ac Adapter Laptop Charger for Dell PA-12 Latitude3330 3440 3340 3540 3450; DellInspiron 15 (3521),Inspiron 15 (3520),Inspiron 15 (3537),Inspiron 15R (5521),Inspiron 15R (7520)7.4 5.0mm (Adapter 5521 Ac)