Support PD3.1 (PPS), QC3.0, SCP With protection functions, input overvoltage and undervoltage protection, input overcurrent protection, output overcurrent and short circuit protection, and overall overtemperature protection Maximum output 20V 3.25A Input 8-30V (can only step down) Output voltage: Automatically adjusts between 3.3V and 21V when connected to a compatible TYPE-C receiving device (the input voltage should be higher than the output voltage, if 20V fast charging is triggered, the input voltage should be higher than 20V) Supported charging protocols: BC1.2, for Apple protocol for Qualcomm QC2.0 and QC3.0 for Huawei fast charging protocol FCP and SCP for Samsung fast charging protocol AFC for MTK PE+1.1 and for MTK PE+2.0 PD2.0/PD3.1 (PPS) output protocol Product application: various types of power conversion, fast charging output Colour:Black Material:abs type:A:standard version Package Contents: 5 x Fast charging module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.