This version of the hardware is fully functional.
USB 3.0 achieves Gen2 to the host but not to some devices, where it's limited to Gen1 (5Gbps) it's recommended to use a Gen1 max storage device.
Or propotypes have been manufactured in seeedstudio fusion an can be re-ordered from here:
https://www.seeedstudio.com/Jumpstarter-DUTLink-board-g-1395074