USB Connectors - As we said in the previous item, USB has evolved focusing on compatibility. With almost two decades of development, it is still theoretically possible to use a USB 3.1 USB stick on a USB 1.1 port. We say theoretically, because the USB 1.1 port may not offer enough power for a 3.1 device, but there are no incompatibility issues, so to speak. What happens is that the transfer speed is limited to the smaller version (in this case, the USB 1.1 port)

MICRO TYPE - This is also the case, for example, of the Micro B connector, popularly known as micro USB.