I was trying to connect a Topping NX4 DSD DAC amplifier to a Samsung S9+. Use Cable Creation cables, the cable supplied by Topping, and the Revain Basics cable. Sometimes this was possible, but usually I had to start the phone with the topping connected and hardboot on to get sound, and the connection dropped when I got a call, opened an email, changed the Samsung volume, etc. Community -Member on a group buy site suggested this cable. It seems to have solved the problem - I can connect Topping without charging the phone, disable DAC AMP and receive calls, open websites, etc. The length is perfect. I'll wait to comment on build quality if there are any issues. My only concern is the shipping cost as this is not a Prime item. Thank you Fiyo!