I have retrofitted with this plug the car mount for my phone from the cigarette lighter adapter to a USB connector in order to operate / load to an appropriate power supply in the car several devices (mobile phones) can. The plug is designed robust, yet easy to apply. The contacts are pressed, not soldered. For me it has worked wonderfully. At the end to get the shell over the plug was a bit tricky, but now it sits so tight that it is impossible to get back down. I am completely satisfied, my expectations of him met the connector easily.