starting with macOS High Sierra 10.13.2 there will be native support for Aquantia AQtion based 10GbE network cards.
digging around in the latest developer beta of 10.13.2 revealed a KEXT named "AppleEthernetAquantiaAqtion.kext".
path to the KEXT...
yes, I have read the documentation. but it's not entirely correct! as I wrote, I do own an EIZO EV2736W which supports 2560x1440 @30Hz and the NUC is connected using its HDMI port -> DVI on the EIZO. I am using the native resolution of the EIZO's panel.
using HDMI port on the NUC? this usually tops out at 1920x1200. but, connecting it to my EIZO EV2736W I'm getting the full 2560x1440. although only with 30Hz refresh rate. mousepointer looks a bit choppy...
nope, I tried it already and I didn't get any video. may be possible with some effort, I don't know... I did not try very hard, just swapped the mSATA SSD from the already working NUC to the new cheapo-NUC.
speedstep: to my best knowledge, the CPU in the intel NUC isn't capable of doing speedstep. edit: sorry, meant TurboBoost. CPU has NO TurboBoost. Speedstep: I don't know.
audio: right now, only AirPlay or an external USB audio-interface works.
USB: all ports seem to work...
got my intel NUC yesterday (the one with LAN connector but NO Thunderbolt) and everything seems to work. didn't try audio through HDMI yet. AirPlay works fine though. it won't work unless the graphics memory in the BIOS is set to 128MB, very important!