65W 19.5V 3.34A Laptop Ac Adapter Charger for Dell Latitude3330 3440 3340 3540 3450;E6420 E6430 E6520 E6530 E6540 E7240 E7250 E7440; Inspiron 15 3521 3520 3537 5521 15R 7520 Power Supply Cord Plug