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 laptops, mobile phones, PDAs, video consoles and many others. It features one 120V AC plug, one USB port, and one Targus PPS port. The PPS port can be used with the Targus Auto/Dual Digital Device Power Adapter (APP2001US). The APV11US can deliver 100W of continuous and up to 150W of peak power. It is safe to use and features over-current, over-temperature and surge protection. The APV11US is targeted for mobile professionals or recreational users looking for a power source that won't take up a large amount of space.