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by Cisco
Product Line: Cisco 890 Series Integrated Services Routers
Product Type: Router
Original price $0.00 - Original price $251.00
Original price
$0.00 - $251.00
Current price $251.00
Title: Used

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Product Description

The C891FW-A-K9 Cisco integrates SFP ports and dual radio 802.11n Wi-Fi, supporting up to 50 recommended users with advanced connectivity options. It is equipped with 512 MB DRAM and 256 MB flash memory, and features comprehensive security measures including fifty IPsec tunnels and dynamic multipoint VPN. For network management, it offers MAC filtering, switched port analyzer, and storm control, alongside a RJ-45 console port and one USB 2.0 port for enhanced configuration and control.

Key Feature for the C891FWAK9

  • What are the dual radio frequencies supported by the device?
    The device supports 2.4 GHz and 5 GHz frequencies.
  • How many SSIDs can be configured?
    Up to 16 Service Set Identifiers (SSIDs) and multiple broadcast SSIDs can be configured.
  • What is the maximum operating temperature for this device?
    The maximum operating temperature is 40 °C.
  • Can the device be managed through a console port?
    Yes, it features an RJ-45 console port for management.
  • What security features are included?
    Security features include Fifty IPsec Tunnels, NAT Transparency, Dynamic Multipoint VPN, Control Plane Policing, and Flexible Packet Matching.
  • How much RAM and flash memory does it have?
    It is equipped with 512 MB DRAM and 256 MB of flash memory.
  • What are the power input and output specifications?
    Input AC Voltage is 100 VAC to 240 VAC, and output DC Voltage is 12 VDC with a maximum output power of 60 W.
  • Does it support SFP ports?
    Yes, SFP ports are supported.
  • What are the device’s physical dimensions and weight?
    The dimensions are 1.82 x 12.71 x 9.78 inches, and it weighs 5.5 lbs.
  • What type of software is compatible with this device?
    It is compatible with Cisco ONE software.

Product Review

The Cisco C891FW-A-K9 offers versatile connectivity options, including SFP ports and dual-radio 802.11n Wi-Fi, catering to a variety of networking demands. Its security features, such as support for fifty IPsec tunnels and dynamic multipoint VPN, provide comprehensive network protection. However, with 512 MB DRAM and 256 MB flash memory, it may not meet the performance requirements for environments with high data throughput or large-scale application deployments.


The Cisco C891FW-A-K9 is a versatile networking device designed to meet the needs of small to medium-sized businesses. It integrates multiple features into a single platform, including advanced security, wireless connectivity, and enhanced switching capabilities. This product overview focuses on the hardware specifications that make the Cisco C891FW-A-K9 a comprehensive solution for various networking requirements. At its core, the device is powered by 512 MB of DRAM and 256 MB of flash memory, ensuring smooth performance even under heavy workloads. The presence of an RJ-45 console port and a single USB 2.0 port facilitates easy management and connectivity with other devices. The Cisco C891FW-A-K9 is designed to support up to 50 users, making it suitable for small offices or branch locations. Wireless connectivity is a key feature of this model, with dual-radio 802.11n Wi-Fi supporting both 2.4 GHz and 5 GHz bands. This enables businesses to offer secure and reliable wireless access to employees and guests. The device can manage up to 16 service set identifiers (SSIDs), allowing for the creation of multiple wireless networks to separate traffic and enhance security. In terms of security, the Cisco C891FW-A-K9 stands out with its comprehensive suite of features. It supports up to fifty IPsec tunnels for encrypted remote access, NAT transparency for simplifying network addressing, and Dynamic Multipoint VPN (DMVPN) for connecting multiple locations without the need for a direct link. Additional security measures include Control Plane Policing (CoPP) and Flexible Packet Matching (FPM), which work together to protect against malicious traffic and ensure network integrity. The switch features of the Cisco C891FW-A-K9 include MAC filtering, which prevents unauthorized access by filtering traffic based on MAC addresses, a Switched Port Analyzer (SPAN) for monitoring network traffic, and storm control to prevent traffic surges from overwhelming the network. These features contribute to the device's ability to deliver reliable and secure connectivity.
  • SFP Ports: Yes, enabling fiber optic connections for high-speed networking.
  • Software: Cisco ONE, offering a comprehensive suite of services and management tools.
  • Recommended Number of Users: 50, making it ideal for small to medium-sized business environments.
The unit measures 1.82 x 12.71 x 9.78 inches and weighs 5.5 lbs, making it compact enough for desktop use or rack mounting in a standard networking cabinet. It operates within a temperature range of 0 °C to 40 °C and can function at altitudes up to 10,000 feet, ensuring reliability across various environments. The device is powered by an AC input of 100 VAC to 240 VAC and provides an output of 12 VDC with a maximum power output of 60 W. Humidity tolerance ranges from 10% to 85% (non-condensing) during operation and 5% to 95% (non-condensing) when not in use, ensuring durability and long-term performance under varying environmental conditions. Whether installed in an office, a retail setting, or a small branch, the Cisco C891FW-A-K9 is engineered to provide secure, reliable connectivity and support the demands of modern business networks.


Part NumberC891FW-A-K9
SFP Ports AvailabilityYes
Wi-Fi SupportDual Band 802.11n
Operating SystemCisco ONE
Switching CapabilitiesMAC Filtering, SPAN, Storm Suppression
Protection MechanismsUp to 50 IPsec Channels, NAT Hiding, DMVPN, CPU Guard, Contextual Packet Inspection
Optimal User Capacity50
SSID Support16 SSIDs with Broadcast Capability
Memory Capacity512 MB DRAM
Storage Size256 MB
Management InterfaceRJ-45 Console
USB 2.0 Interfaces1 Port
Frequency Bands2.4 GHz & 5 GHz
Dimensions1.82 x 12.71 x 9.78 inches
Mass5.5 pounds
AC Input100 to 240 VAC
DC Output12 VDC
Power Capacity60 Watts
Operational Min Temp0 °C
Operational Max Temp40 °C
Humidity During Operation10% to 85% Non-Condensing
Storage Min Temp0 °C
Storage Max Temp65 °C
Humidity During Storage5% to 95% Non-Condensing
Max Altitude in OperationUp to 10,000 ft
Max Altitude in StorageUp to 15,000 ft

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