Come and see our amazing products. Fast charging 3.0 fast charging technology: Provides the fastest charging for smartphones and tablets, and the charging speed of compatible devices is 4 times faster than standard chargers.no need to prepare a USB charger. This 4-port USB charger can meet all your charging needs. 1 fast charging 3.0 port is used to support fast charging devices and 3 3.1A fast charging ports automatically detect and adjust the fast charging of non-quality control devices. Pls confirm with us about the packing info, stock color and exact production time before placing your order.