Cisco C891F-K9 Ethernet Integrated Services Router

The Cisco C891F-K9 is a high-performance Integrated Services Router (ISR) designed for secure connectivity in small businesses, branch offices, and remote enterprise locations. It combines advanced routing, integrated security, VPN services, and Gigabit Ethernet switching into a compact desktop platform. Equipped with an SFP-based Gigabit WAN interface, an additional Fast Ethernet WAN backup port, and an integrated 8-port Gigabit managed switch, the router delivers reliable network performance, business continuity, and secure communications for modern enterprise environments.

Product Features

Gigabit WAN Connectivity

Features one Gigabit Ethernet SFP WAN interface for high-speed fiber connectivity, enabling reliable broadband and Metro Ethernet deployments.

Integrated 8-Port Gigabit Managed Switch

Includes an integrated 8-port 10/100/1000 Mbps managed Ethernet switch, allowing multiple wired devices to connect while supporting advanced switching capabilities.

Fast Ethernet Backup WAN Port

Provides a dedicated Fast Ethernet WAN backup interface to maintain network connectivity in the event of a primary WAN failure.

Enterprise-Grade Security

Supports integrated firewall protection, IPsec VPN, SSL VPN, access control lists (ACLs), authentication services, and advanced encryption to safeguard business communications.

Secure VPN Connectivity

Enables secure site-to-site and remote-access VPN connections, allowing encrypted communication between headquarters, branch offices, and remote workers.

IPv4 and IPv6 Support

Supports both IPv4 and IPv6 networking, ensuring compatibility with current and future enterprise network infrastructures.

Flexible Management

Supports web-based management, Cisco Configuration Professional, SNMP, Secure Shell (SSH), Telnet, and Command-Line Interface (CLI) for simplified administration.

Compact Fanless Design

Built with a fanless desktop chassis for quiet operation and dependable performance in office and branch environments.

Product Specifications

• Model: C891F-K9
• Product Type: Ethernet Integrated Services Router
• WAN Interfaces:
  • 1 × Gigabit Ethernet SFP Port
  • 1 × Fast Ethernet Backup WAN Port
• LAN Interfaces: 8 × 10/100/1000 Mbps Managed Gigabit Ethernet Switch Ports
• Routing Support: IPv4 and IPv6
• VPN Support: IPsec VPN, SSL VPN
• Integrated Firewall: Yes
• Security Features: ACLs, VPN Encryption, Stateful Firewall, RADIUS, TACACS+
• Switching: Managed Layer 2 Gigabit Switch
• USB Port: 1 × USB 2.0
• Console Port: 1 × RJ45 Console Port
• Flash Memory: 256 MB
• DRAM Memory: 1 GB DDR RAM
• Wireless: Not Included (wireless available only on specific C891FW models)
• Management Interfaces: Web GUI, CLI, SSH, SNMP, Telnet
• Power Input: External AC Power Adapter
• Cooling: Fanless
• Operating Temperature: 0°C to 40°C
• Dimensions: Approximately 322.8 × 248.4 × 46.2 mm
• Weight: Approximately 2.5 kg
• Mounting Options: Desktop
• Ideal Applications: Small businesses, branch offices, retail stores, enterprise edge networking, secure WAN connectivity, VPN deployments, and fiber-based business internet connections.