Sensky 4-Port 31Watts, USB Smart Charging Station, High Speed Desktop USB Charger for Smartphones, Tablets, External Battery, Digital Camera and Other USB Charged Devices 2.4A ports for Pad(2 ports), 1A port for cell phone(2 ports) total 6A 31W output. CONVENIENT: The All-In-One charger, 4USB ports, compatible with Apple and Android smartphones, tablet, external battery and other USB-charged Devices. SAFE: Each product passed high Voltage test (Voltage at 3.2kV), no current leakage, ensure safety while charging. SMART: Intelligently identifies your device. Deliver the fastest charge. With over-heated, over-current, over -charging protection. Charging will be automatically stop when battery is full FASTER: Two 2.4A ports for pad, two 1A post for phone, totally 6A,31W output. 2.4A Super Charging Port with intelligent Charging IC in it, Auto Recognize the device and give the Amps needed