ISA3000 - 4 x Copper 10/100/1000

The Cisco® Industrial Security Appliances are true industrial firewalls that provide OT targeted protection based on proven enterprise class security.
The ISA 3000 with four data links is a DIN rail mount, ruggedized appliance that provides the widest range of Access, Threat, and Application controls for the harshest and most demanding of industrial environments.
 
For more detail: https://www.cisco.com/c/en/us/products/collateral/security/industrial-security-appliance-3000/data-sheet-c78-735839.html