I got a TP-Link UH720 and Raspberry PI 3 (Raspian) and ran 4 Moonlander 2 on them. They run at standard core voltage @ 796 MHZ so about 4,5 MH per Moonlander. The power consumption for the hole setup is 50 watts.
That's a nice hub neochi, I like your setup. Can you share a pic the rig in action? How was setting up the RPi with the MLD2s?