ZOER 4 Port USB Car Charger Output 5V2.1A Input: 12V. Output: 5V 2.1A (single output), 4 USB ports simultaneously outputs, 5V 525MA. for iPad,iPhone 4/4S/5/5S/6/6S,HTC,Samsung,Nokia,Moto,Tablets,Digital cameras, Electronic products and so on, in the car charge. The standard for all USB charging mobile phones or other electronic products. Multi-output USB interface can also charge for multiple electronic products,Output short-circuit electronic automatic protection and restoration.