2 rapid-charge USB ports . Plugs into any car power outlet . 2.1 Amp/10 Watts per port . Compatible with iPhone ， iPod touch，iPod nano， iPad iPad mini 2 rapid-charge USB ports^Plugs into any car power outlet^2.1 Amp/10 Watts per port With the Ldnio Dual Car Charger you can charge two usb devices at once. The low-profile car charger has two USB cable-compatible 10-Watt/2.1-Amp charging slots.