Today I saw a USB Wall charger for sale and it claimed it can output 3 amps at 5V and it only had one USB port. USB specs say a dedicated charging port is rated for 1.8A.
So how is this charger USB port able to handle 3A? I have looked online and I can't find a USB port that is rated to handle 3A. Best i could find is a USB port that has gold plated on the USB pins inside the port.
I have tried to draw 3A from a normal USB 2.0 and the USB connector got really hot. How can a USB charger with USB-A connector handle 3 Ampere?