ARyee AC Adapter Laptop Charger Compatible with HP Elitebook 8470p 8460p 840-G1 840-G2 Series, HP Probook 4530s 4540s 4440s 6560b Series, HP Pavilion DV4 DV5 DV6 DV7 G4 G6 G7(18.5V 3.5A)