I'm planning a very similar build (Sierra on Z170X-UD5 TH, i7-6700K, Asus GTX750TI-2GD5). Following
STEP BY STEP THUNDERBOLT 3 SETUP in tonymacx86's Skylake Thunderbolt 3 Test Build it seems to work (no hotswap) without any modification in Sierra. I have received the Startech...
there are drivers from echo which do work on recent Macs: http://echoaudio.com/pages/mac-os-x-software.
However, it's still useless, as recent Intel Macs do not support PCI, there's no way to get the PCi Echo to run on a recent Intel Mac/Hack.
I got two i7 3770 firewire builds...
Thanks for sharing, it's working for me on GA-Z77-DS3H/3770K.
Just to add:
- it seems to work only with a single monitor connected (as already mentioned in some comments). To get both DVI and HDMI running, this worked for me:
1. Follow the guide with only one monitor connected...