1.QC4.0 is only available in type c to type c port and need QC4.0 supported Cable, USB port just support QC3.0.
2.When charging two devices,it will be like normal charger
Type-c +USB: PD + QC 3.0
USB+USB: Dual QC 3.0
–USB 1: 4.5V/5A,5V/4.5A,9V/3A,12V/2.5A(Support Quick Charge 3.0/FCP/SCP/AFC)
–USB 2 : 4.5V/5A,5V/4.5A,9V/3A,12V/2.5A(Support Quick Charge 3.0/FCP/SCP/AFC)
Charging 2 devices at the same time.
Fully charged during the driving period.
Charging power reaches up to 30W, as fast as your original charger.
Indicator light is blue while charging at night.
Universal compatible for most vehicles.
Multiple protections for your safety.
Updated version for more convenience.