GPK Auto Power Adapter for Dell Studio XPS 13 16 1645 1647 1640 Studio 14z 15 1457 1458 1535 1536 1537 1555 1557 1558 1735 1737 1749 Studio Hybrid XPS 14 L401x 15 M1210 M1330 M140 M1530 Laptop Charger Auto Truck Adapter Car Charger Power Cord Input: DC 11V - 16V Output: 19.5V Service & Support 1 year warranty Use minimal power this adapter is designed to save energy Designed exclusively for use with the laptops 100% compatibility with the original.