[adrian_b]

I am using an older Intel NUC with a Coffee Lake U CPU, together with 4 USB Ethernet adapters, to increase the number of Ethernet ports to 5.

The measured average power over 24 hours is around 12 to 13 W. The idle power is under 10 W and the maximum power consumption can be up to 60 W, but even a large number of active network services, e.g. firewall, e-mail server, Web server and Web proxy, DNS server and DNS proxy, NTP server and so on, require just a power consumption not much above the idle level.

I assume that a NUC-like computer with a Jasper Lake CPU should have an average power consumption under 10 W. At least with Intel or AMD CPUs and associated peripherals you do not have to worry about software compatibility.