The Targus 100W Auto Power Inverter - Cupholder Style is designed for the mobile professional or recreational user. It provides a power source for most electrical devices in RVs, cars or boats. It is designed to conveniently fit into most standard cup holders. Simply plug the inverter into the cigarette lighter plug and power or charge up to three devices including notebooks, mobile phones, PDAs, video consoles and many others. It features one 120V AC plug, one USB port, and one Targus PPS port.