Currently electronic devices are produced a lot. With our usage needs, it is required that those devices can be compatible, synchronous with each other. Therefore, manufacturers have integrated connection ports on their devices to ensure connectivity. Devices now often come equipped with USB 3.0 ports. However, for those using older devices, only USB 2.0 ports are available. So if I plug the USB 3.0 port into the USB 2.0 port, will it work? Hope everyone help answer.