All USB ports are not the same. Some have been built to do some work better and faster. Let's see how and what.
You may have noticed that the charging of your mobile phone becomes faster when you connect it to a USB port prominently located on your computer and slower when you put it on a secondary one. In fact, smartphones with Android 6.0 and above understand the difference and inform you by writing to screen “Charging” or “Slow charging”.
Although slow charging may have to do with a faulty cable, it may also be a fault that you have plugged it into a USB slow-charging port. There is a way of recognizing the differences of your doors, as long as you notice them a little better.
First recognize the symbols. See it below picture to locate the USB 3.0, 2.0 and charging port on your system.
Depending on your computer manufacturer, you may see the lightning symbol (meaning the port is suitable for charging) next to the 3.0 symbol. This means that this port is also suitable for fast charging and USB 3.0 data transmission.
Regarding the data speed, we remind you that USB 3.0 ports usually have blue color while the 2.0 black or gray.
Finally ports that don't have the lightning bolt symbol will still load it phone your. Simply, the electrical power in them is limited, which leads to slow charging.
