The magnetic cable can be used as anti-dust plug to extend the life od smart devices,The USB magnet Interface and the cable are separated, easy to connect and separation via strong magnetic force. It can't support QC 3.0 fast charging, but the cable output 5V/2.4A(Max) satisfy high efficiency in charging if your devices and power adapter support fast speed charge.You can plug the gold plated connector in your devices slot quite easily and steadily, and won't get loose or fall out from your devices as your normal micro usb cables.