All USB ports are not created equal. USB might have become a universally accepted standard of connecting peripherals to your system but all USB ports found on your system aren’t the same. Some are built to do things others aren’t for example; you might have noticed that your phone charges faster when you connect it to a certain USB port and slower when you use a different one. While the slow charge might have to do with a problematic data cable, it might also be that you’re connecting your phone to a slow charging USB port. What you need to do is connect it to the one specifically built to charge a device. Here’s how you can identify the USB 3.0 and USB charging port on your system.
Look for the following symbols next to the USB port you want to connect a device to;