Why not Make your own ? I have a regular PC running Pfsense (Router + Firewall).

I use this four port NIC I350T4V2BLK
this NIC https://www.ebay.com/itm/NEW-Intel-OEM-I350T4V2BLK-Ethernet-Server-Adapter-Gigabi-4-Port-RJ45-PCI-Express/112400469306?hash=item1a2b970d3a:g:NHEAAOSwhvFZEIBT.

If you want to match the power of that firewall with a cisco switch WS-C3750G-48PS-S is a perfect pair.


for wireless connection I use an access point (AP).