So it doesn't work:
PowerGuard Adapter with Charge-In RJ45, USB Type C

Basically, anything that is USB-C compatible will work. The only thing to note is that the Chromecast with TV must be able to draw enough power (15W+) via USB. For this, you need a charging adapter such as: Belkin INC001BTBK (USB-C)

I have read/heard here and there, my recollection is that the speed achieved is so-so la-la. E.g. here ~300Mbps is achieved: https://www.reddit.com/r...