I run a NUC as my router, with only one NIC. I use tagged vlans to separate the networks, and have a cheapo switch that understands tagged vlans. Unless you hav

I run a NUC as my router, with only one NIC. I use tagged vlans to separate the networks, and have a cheapo switch that understands tagged vlans. Unless you have a really nice external network connection, you don't really need multiple NICs for your router.