Look closer into the Apollo like jstefanop suggested but as far as that hub, here are the specs & it's matter of math:
Max output per port: 900MA; total current output: 12V/3A; watts:36W
Max 900mA per port and total of only 3A. That hub could run a few at less than optimal speeds (to get full speed you need more than 900mA per port) but obviously it's way under powered to run 7. So if you stick to moonlander route look into more beastly hubs. I bought one of these beasts:
https://smile.amazon.com/gp/product/B01KPOEX9O/Provides up to 5V, 2A (10 Watts) of power per port
Granted due to the spacing you can only get 12 on there without short USB extension cables but yeah it's more suited for mining than that hub you linked.
Or there are options such as this one:
https://smile.amazon.com/dp/B07MK5CLMBGood luck
If I am following your math correctly, I should be able to run 4 on this with no issues correct?