Targus PA357U Black cable interface/gender adapter

Universal Auto/Air Notebook Power Adapter This Targus Universal Auto/Air Power Adapter allows users to power many popular models of Dell laptop computers while traveling in an automobile or an airplane. Universal Laptop Power Adapter is compact, lightweight, and has a total body and cord length of 4ft. This new advanced power source is also dual purpose - it not only allows you to plug virtually any notebook computer into most airline seats with inflight power capability, it works in vehicles with standard cigarette lighters as well. This Laptop Power Adapter is the safest, most convenient way to power your Dell laptop PC. Users with notebooks requiring voltage higher than 70 watts should note that this adapter will only allow your notebook to operate in Battery Optimized mode.