I know macOS is not officially supported (with this device), but it has worked perfectly for my 2017 Macbook Pro (with the DisplayLink Manager software installed). So I was wondering what your expectations were for UD-3900 compatibility with the new 2020 M1-Mac Mini?
Thank you for contacting us and I’d be happy to answer your question!
As you know the Mac mini has a limitation of supporting only one additional display through native connection, but thanks to the DisplayLink technology, this limitation can be surpassed.
Just like on your current setup, you will need the DisplayLink Manager app installed on your Mac mini - the latest 1.2 version is still Intel-built, but it works on the M1 based systems thanks to Apple’s Rosetta 2’s translation. DisplayLink is currently working on updating the app for full universal support.
I hope this helps. For further information on compatibility tests and recommendations, be sure to check out blog posts on our website → Plugable.com