Yes, Ethernet (Local Area Network / LAN) is available on this Mac. Connection to the power supply unit!

As Global IT points out, the Ethernet port is not present on the entry-level iMac. If you look at the back of the device, you will find 2 USB-C ports. The top models, which have 4 USB-C ports (2 of which are Thunderbolt) have an Ethernet port in the power supply. On the entry-level iMac, the Ethernet option costs $30.00 - it is very rarely available from discounter like Galaxus. Philippe from OPEN MAC,

No, but it is possible to buy a cheap usb c - lan adapter.

No this one exactly no but you have variants that are . In fact the network connection is done via a plug present or not in the charger block. so depending on the model it has or not the specific charger block equipped or not with the network plug. it is the same for the touch ID keyboard with fingerprints