3 port usb car charger uses standard USB 5V / 4.2A output and 12-24V input to ensure safe charging of most USB devices. Multi USB ports car charger adapter provides allow you to charge 3 devices (such as iPads, iPhones, tablet, smartphone or other devices) simultaneously at full charging speed while on the road. With Smart IC Technology, each port intelligently identifies your device, quickly and easily identify to provide optimal charging efficiency. Full-speed charging (2.4A per port) for Apple iPadAir2/Air, iPad 5, iPad 4, New iPad3, iPad2 / Apple iPhone 6S, 6S Plus, 6, 6 Plus, 5s, 5c, 5, 4s, 4, 3Gs / Apple iPod Touch, iPod Nano / iPad Mini, iPad Mini with Retina Display and iPad Mini 3 Connector Independent - Works with Micro USB, Lightning and Type C cables. Surge and Voltage Protection.