A:AnswerThe USB C port has an output of 5V/3A which means it's 15W (this USB C port can also be an input to the power bank with the same 15W wattage) and the USB A port has an output of 5V/2.4A which means it's 12W (the same speed as an iPad wall charger). For comparison, the fast charger wattage of iPhone 12 is 20W, and back to iPhone 11 and the standard PD are 18W. Hope this helps!