Works flawlessly (transmits power and data)

Use the adapter to older USB devices with mini-USB port to use on a USB micro cable. Specifically, I use the adapter eg with a Contour helmet cam. The unit is charged when connected to my laptop both as recognized as a mass storage device so that I can transfer data. So it works so far everything just like without an adapter when using a USB mini cable. Therefore, I am fully satisfied with the adapter and no longer has to take while traveling different USB charging cable. Oh, and processing can in my opinion nothing to be desired and makes a robust impression.