QC4.0 QC3.0 USB Fast Charging Adapter 6-35V Step Down Buck Module

DescriptionFor quick charging with low voltage and large current, please use the original data cable. If you want to measure the charging voltage and current, please use the USB meter with low internal resistance! Otherwise affects charging current!TYPE C port is used for output charging; Use c-to-c /TYPE_C dual-head data cable TO charge mobile phone or laptop!QC4 /QC4.0/PD3.0 and other protocols use YPE O port!When the power supply voltage is higher than 21 volts, the maximum support of port C PD protocol is 20V3A output. The module volume is small.When the USB port and TYPE_C port are plugged in at the same time, both ports are 5V output!