[sudo-discuss] seeking a low-power computer with 2 or more ethernet ports

[Jake]

i'm looking for a small low-power computer with at least two ethernet ports.
gigabit would be preferred although i wouldn't turn down an older one since I
have nothing at this point.  I want to make a router for my house, to go
between the comcast bullshit and my internal network.

just a raw motherboard would be fine but with a case is fine too.

i should mention that i want something that doesn't take unnecessary power, and
ideally i'll be powering it from 12vdc using a little converter like this:
https://images10.newegg.com/NeweggImage/ProductImage/ACJ4_1_20170621730359174.jpg

thank you
-jake