ISA-3000-4C-K9 - Cisco ISA3000 4 Copper Port Industrial Firewall

Cisco ISA-3000-4C-K9 — Industrial Security Appliance (Rugged Firewall)

What it is

ISA-3000-4C-K9 is a Cisco Industrial Security Appliance (ISA 3000 Series) — a ruggedized firewall designed for industrial/OT networks like factories, utilities, oil & gas, and transportation environments.
It’s built to provide secure segmentation and threat protection at the industrial edge, in a compact, hardened chassis with Cisco-style management and strong security features.

Why buyers pick ISA-3000-4C-K9 (plain English)

• Built for OT / harsh environments
  Designed to survive industrial cabinets and field deployments where normal firewalls aren’t a great fit.

• Segmentation for industrial networks
  Ideal for zoning production networks (cell/area zones, machine networks, SCADA segments).

• Cisco security features + familiar workflows
  Gives you firewalling, VPN, policy enforcement, and visibility while staying in the Cisco ecosystem.

• Compact and cabinet-friendly
  Fits in tight spaces and supports industrial mounting styles.

60-second spec box (ISA-3000-4C-K9)

Product family

• Cisco ISA 3000 Series Industrial Security Appliance

Role

• Rugged firewall / security gateway for industrial networks

• Secure segmentation + remote access protection

Interfaces

• 4 × Copper Ethernet ports (“4C”)

Security functions (typical)

• Stateful firewall policies

• Site-to-site and remote-access VPN

• Network segmentation (zones/DMZ concepts)

• Industrial edge security enforcement

Management

• Cisco CLI + centralized security management options (deployment dependent)

Ruggedization

• Industrial temperature tolerance

• Designed for control cabinets and harsh electrical environments

Where it fits (and when to choose something else)

Perfect for:

• Securing OT segments (SCADA, PLC networks, remote cabinets)

• Industrial DMZ builds

• Remote sites needing rugged VPN + firewall

Choose something else if:

• You’re deploying in a normal data-center rack → standard Firepower appliances may be more cost-effective

• You need much higher throughput → choose a larger firewall class

TL;DR

ISA-3000-4C-K9 is a rugged Cisco industrial firewall/security appliance:
4 copper ports, OT-ready form factor, and built for segmentation + secure remote connectivity in harsh industrial environments.