qc 3.0 fast car charger dual usb port 3.1a fast charging 5v 9v 12v qualcomm adaptive quick charge phone adapter for samsung s8 iphone 7 8 x

product protection:shortcircuit protection,over voltage protection,over current protection,high temperature protection, current limited protection,short circiut turn off, etc. compatibility: backwards compatible with all versions of qualcomm quick charge technology (1.0, 2.0 & 3.0). also compatible with usb-c and provides standard charging for non-quick charge devices