The PowerZone USB charger with surge protector plug is easy to install and use by just plugging in a wall socket. One-stop charging station for smartphone, iPhone, iPad, Kindle and Tablets with 6A shared of power, these USB ports charge faster than traditional USB ports. The USB charger with surge protector has an Intelligent built-in voltage sensing circuitry that detects and responds to your device's power needs, while safety features, such as thermal fuses that power off your system in the event of a severe occurrence, ensure that your devices are protected.