12-volt connections appear in virtually all modern automobiles. They're useful for powering a wide variety of electronic gadgets. MP3 players, laptops and Blu-Ray players can all run properly with a 12V socket and the appropriate adapter. Dashboard cameras, screens and GPS devices also interface seamlessly with these connections. At All Electronics we carry several automotive cigarette lighter cables, including a 12' long two-conductor cable, y-cables and a dual USB port car charging cable.