This is the easiest box for me to get in Australia after my X96 Mini stopped responding.
From what I can tell the cheaper 2/16 box is 100 ethernet only and only 2.4Ghz Wifi-n
You need the 4/32 + 4/64 for Gigabit, 5Ghz AC, and BT.
I just did a fresh install of CoreELEC 20.1 -ne on this device: Page Not Found - Aliexpress.com. I think that’s the same you have. Now I’m surprised to see that it says “No Bluetooth adapter found”. Did you find a solution?
EDIT: mine says it has 1G ehternet