Super Power Supply DC Laptop Car Adapter Charger Cord with USB charging port for Dell Studio XPS 15 X15-1031aal ; 15z S15z-3630cpn ; 17 X17-2178aal ; 1340 X1340-1769obk ; 1647 X1647-5892obk ; 1747 S1747-2204cbk ; 90 Watt Netbook Notebook Battery Plug Output: 19.5V 4.62A 90W / Power laptop and charge battery from 12V DC outlets (car / air / boat) Warranty: 1 Year Super Power Supply are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply