Sunshine-tipway&reg; Ac 5a 4 Port USB Charger Travel Adapter Universal Charger for Most Usb-charged Devices (Blue) Intelligent recognition compatible with more devices,automatic identification of various device,automatic matching equipment required for the best charging current Phone charging temperature at a glance on the LCD screen. Always shows the temperature Guarding equipment safety overload protection module.using current 5A load in the industry,applying more digital electronic charge,usb circuit board settings prevent overload protection,effectively prevent overlaod of danger Intelligent protection charge safe,innovation PTC against over-current,over-voltage,leakage, short circuit protection mechanism,charging safer and more secure pc heat resistant smoldering shell ,the flame retardant engineering plastics,750 degrees high temperature does not burn,fire effectively