Question about Google Chromecast Ultra EU Version

Since I myself received a Chromecast Ultra EU yesterday, I can also confirm that the above-mentioned anonymous "accepted response" from 25.02.2018 does NOT apply to this device version! (at best for another version)
The RJ45 Ethernet socket is also located in the supplied plug-in power supply with 2-pin 240V Euro plug. Thus, the Chromecast Ultra "Puck" is supplied with power and the optional Ethernet signal via the cable permanently attached to the power supply unit via the USB-C input. If you want to operate the Puck without Ethernet (only WLAN) with power from the TV USB output (contrary to Google's recommendations), you would have to purchase an appropriate cable separately.

The accepted answer is WRONG.

So the version sold at digitec includes the power supply with the Ethernet connection.

Also gemäss google ist der Ethernet adapter optional...

no, the thing only runs via wifi. a 2-pin power supply is included, but it is preferable to connect the part to the tv via usb, then it switches on and off automatically with the tv.