GPK Systems Car Charger for Dell Latitude E6420 , Inspiron 14 I14rn-1227bk I14rn-1432bk I14z-3305bk , 15 I15rm-1766bk I15rn-2588red I15rn-4706bk, 17 I17rn-5412bk, Vostro 1540-469-1145 3550-469-0346 , XPS X15l-1786slv X1340-1769obk Laptop Power Supply Cord Notebook Battery Charger Input: DC 11V - 16V Output: 19.5V 4.62A 90Watt 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.