Review on Battony USB C to HDMI Adapter - Multiport AV Converter with 4K HDMI Output, USB C Port, and USB 3.0 Fast Charging Port - Compatible with MacBook Pro, MacBook Air 2019/2018, iPad Pro 2019 by Michael Welborn

I bought this for my Samsung Note 9 and it works great with it. However, since the DEX software for Windows has improved a lot, I don't use it as much as I did when I first bought it. Display quality was good and I had a wireless keyboard connected to USB with no issues. It also didn't seem to have any problem transferring enough power to keep the phone fully charged while in use. I don't think 4K will work for me, but from what I've read this is more of an issue with Samsung than any of these adapters.