Don't lose a second of your precious time on the road or in-flight. The Automobile and Airline DC Power Adapters for Notebook Computers will keep you powered in a car, truck, RV, boat or airplane. Approved by IBM, Dell and Panasonic the adapters are engineered to meet the highest standards of quality, safety and reliability. All the adapters are housed in aluminum for durability. This power adapter is designed for ThinkPad A, T, X series; ThinkPad 770, 765, 760, 600, 570, 560, 390, 385, 380, 240 series; ThinkPad 2621-xxx, 1161-xxx, 1171-xxx series; i1200, i1300 and i1500 series, i1720, i1721; TransNote series.