Multi-protocol 48-port type-c fast charger

What is the difference between QC 2.0 and QC 3.0?

*QC 2.0 offers charging speeds up to 60 watts,while QC 3.0 can provide charging speeds up to 100 watts.This means that QC 3.0 is faster and can charge compatible devices even more quickly.
*QC 3.0 is backward compatible with QC 2.0 devices.But,QC 2.0 chargers are not compatible with QC 3.0 devices.
*QC 3.0 enhances the Intelligent Negotiated Optimal Voltage (INOV) algorithm to provide optimal charging efficiency.This feature is not available in QC 2.0.
48 Ports Usb Charging Station Product characteristics
48 Port Type-C Charger One of the main features of this Multiport Usb Charger is that it supports a variety of fast charging protocols. Compatible with functions such as PD,QC,and HUAWEIFCP,it can charge various devices from different manufacturers.