Note 9 DeX mode with an HDMI cable: does it work just as well? - PhoneArena
How do I connect my Note9 to a screen using DeX? | Samsung Support HK_EN
Amazon.com: Samsung Note 9 DeX
Samsung DeX Cable, Black | Samsung Deutschland
Hot Dex Cable For Samsung USB C Type C to HDMI 4K Cable HDTV TV Digital AV Adapter for Samsung Note 9 DeX HDMI converter Cable|Type-C Adapter| - AliExpress