Dell PA-10 19.5V 4.62A 90W 7.4*5.0mm + Center Pin Compatible AC Adapter Charger
DC Pin Size: 7.4mm x 5.0mm + With Centre Pin. You can find this information on the labelof your original adapter. "Clover Cable Promotion". Power: 90 Watt. 100% compatibility with the original. To buy 100.