Dunno about NICs, but there's a fair number of x86 motherboards with 4x i225 that support 2.5G. Apparently the rev 1 and rev 2 are fairly broken, but rev 3 is

Dunno about NICs, but there's a fair number of x86 motherboards with 4x i225 that support 2.5G. Apparently the rev 1 and rev 2 are fairly broken, but rev 3 is shipping in various small widgets that are useful for routers, firewalls, etc. Like this one: https://www.servethehome.com/topton-intel-j4125-4x-i225-fanless-virtualized-firewall-appliance-review-pfsense-opnsense-proxmox-ve/ https://www.servethehome.com/topton-intel-j4125-4x-i225-fanl... Apparently the similar units with the 2 gen newer Intel X86-64s are shipping, the N6000 or similar.