Daisy chain G-RAID with Thunderbolt 3 to a MacPro Late 2013 trashcan

I have two G-RAID Thunderbolt 3 28 TB drives. I’m plugging into a MacPro Late 2013 (trashcan), so I have to plug into it using a USB-C to USB-3 cable. How do I daisy chain the second G-RAID to the one that’s plugged into the MacPro? Is there a G-RAID User Guide anywhere on the internet?