https://www.supermicro.com/products/system/Mini-ITX/SYS-E200-9B.cfm (https://www.supermicro.com/products/system/Mini-ITX/SYS-E200-9B.cfm)
It looks like it would be really good.
Hi,
on pfsense forum are some reports with stability problems of the motherboard.
https://forum.pfsense.org/index.php?topic=98230.0
I think that the board isn't a good choice for a Firewall.
Regards
Dirk