For the Galaxy Note 8, it works dazzle. I don't know exactly which devices can be operated with it - especially back. Whether S9 and S10 work with it is to be assumed: Same functions, latest operating system and USB-C. The important thing is the 12V charger, which must always be with you if you want to use the multiport. I wish you good luck.

Now with Original-Power-Supply. A9 with EE-P5000 and EP-TA300 (up to 12V / 25W) still not working. A9-Android updated.
A9 is charging, but Ethernet greyed out, HDMI device detects no input. :-( Why?