The InfinityLAB charger has "smart power distribution" feature, it's smart enough to know how to allocate power, depending on which devices are plugged in.

Take 65W charger as an example:
If plug in only 1 USB-C device to this charger, the USB-C port can deliver max. 65W PD fast charging.
If plug in one USB-C device and one USB-A device simultaneously to this charger, the USB-A port can deliver max.15W fast charging, and the USB-C port can deliver max. 45W PD fast charging.