I also posted this to the THREAD: USB 3.1 FRONT PANEL CONNECTOR CABLE?
After searching and not finding a 3.5" drive bay with USB-C 10Gbps port and a 3.1_e1 cable/connector, I ended up making my own. I posted the process on reddit and imgur -
https://imgur.com/gallery/QbaqaI used the ASUS ROG Maximus IX Hero motherboard. I will be showing the reader how I made and installed a 3.5" drive bay with USB connections into my DAW rack case and how I connected it to the motherboards headers including the USB3.1_e1.
Hope this helps.