Shared my experience with $25 hub (comes with 20W adapter so could handle 4 MLD2 at decent clock).
see:
Hey guys, I am a bit confused as to what gets these things to tick.
How can you be running 3 clocked up sticks at 5V/4A and others cant get 3 working on those pluggable 12V/5A?
Does it really come down to how the board is laid out behind the scenes with the various regulators, etc?
I am thinking of ordering the Pluggable USB3-HUB7-81X: 5V/5A w/ 25W Brick.They are available used at very low cost, and provide 5w additional over the Digitus hub mentioned above.
Should I be able to run 4 sticks on this sucker at stock clocks? Or is it going to dump out like the other pluggable hubs in this thread.
Plugable hub can handle more units (as of the power) but there is limited area around the plugs ... need to use extension cord if you want more sticks.
IMO 25W will be enough to run 4 units at decent clock around 4Mh. You need to test it, see the HW error rate and adjust accordingly.