Dual ports charge two devices at once from a single car power socket 12W power from each port for 24W of total output power Compatible with any device that uses a USB-A cable Belkin BoostCharge CCB001btBK Dual USB-A Car Charger 24W FASTER CHARGING FOR TWO DEVICES Simply plug into your vehicle’s power socket to start charging. You’ll have a combined power of 24 watts (4.8 amps), with each port offering 12 watts of quick and safe power that’s faster than a standard 5-watt charger.