Three USB Ports power and charge up to 3 mobile devices simultaneously making it the perfect travel companion. High Output: 2.4 Amp USB Port charges iPad/Tablets and smartphones. Dual 1 Amp USB ports power iPhone, android, mobile phones and other USB powered devices. Charge one tablet/iPad up to one full time. Fully charges iPhone up to 4 times. Provides maximum charge e?ciency for mobile devices: charges as fast as the device allows.