Macbook pro dont recognize more than 10 external drive

I have macbook pro 2015. I use it as just a farmer and i have a problem about connecting my external drives.
when i plug more than 10 powered external drives with my icybox (16 slot and powered) usb 3.0 hub, my computer dont recognize the rest hdds.
also i tried to plug them with 2x icy box hub with 2 of my computer’s usb port as 2x10 but is still dont recognize more than 10.

Help me please. How can i solve this issue.?