I haven't plugged it into anything to officially sync, but I've been using it to stream 4K video to my laptop and it enabled super-fast transmission. I also used it to fast charge my Note 8 and it provided fast charging. In both cases it worked great. There may be faster cables out there (on paper) but this one is faster than anything I've had before so I'm happy using myself and my past experience as a benchmark. The cable is very well made and not that hard. like other 3.1 cables I have which is good because the one I used in my car tends to come loose due to its rigidity. I ordered another of these cables to replace it. I have nothing negative to say about this cable.