Cisco C819HG-4G-G-K9 Router Wireless
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C819HG-4G-G-K9 Cisco Wireless Integrated Services Router Refurbished

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Part Number#: C819HG-4G-G-K9
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Short Description:
C819HG-4G-G-K9 819HG Wireless Integrated Services Router - 4G - 2 x Antenna - 4 x Network Port - 1 x Broadband Port - Universal Serial Bus (USB)- Gigabit Ethernet - Yes Wall Mountable, Desktop | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Information for the Cisco C819HG-4G-G-K9 Wireless Router

The Cisco C819HG-4G-G-K9 is a powerful Ethernet Integrated Services Router designed to provide reliable and secure connectivity for various network applications. In this comprehensive guide, we will delve into the features, specifications, and benefits of the C819HG-4G-G-K9 router, explaining its functionality and highlighting its suitability for different use cases.

Overview of Cisco C819HG-4G-G-K9

The Cisco C819HG-4G-G-K9 is a member of the Cisco 800 Series Integrated Services Routers (ISRs), which are renowned for their versatility and performance. These routers are specifically designed to meet the demands of small to medium-sized businesses, branch offices, and remote locations that require a robust and scalable networking solution.

Key Features

  • High-Speed Connectivity: The C819HG-4G-G-K9 router supports Gigabit Ethernet ports, ensuring high-speed data transfer for efficient network operations.
  • Integrated 4G LTE: With integrated 4G LTE capabilities, this router provides a reliable and secure backup connection, ensuring continuous connectivity even in the absence of traditional wired networks.
  • Advanced Security Features: Cisco is known for its commitment to network security, and the C819HG-4G-G-K9 is no exception. It incorporates advanced security features such as firewall protection and VPN support to safeguard network data.
  • Compact Design: The router's compact form factor makes it suitable for deployment in space-constrained environments, such as small offices or remote locations.
  • Multiple WAN Interfaces: In addition to 4G LTE, the C819HG-4G-G-K9 supports multiple WAN interfaces, providing flexibility in connectivity options.

Technical Specifications

Let's delve deeper into the technical specifications that make the Cisco C819HG-4G-G-K9 a reliable and high-performing router.

Hardware Specifications
  • Processor: The router is equipped with a powerful processor, ensuring efficient data processing and routing capabilities.
  • Memory: Ample memory resources are available to support the router's operations, including RAM for fast data access and storage.
  • Ethernet Ports: The C819HG-4G-G-K9 features Gigabit Ethernet ports, allowing for high-speed wired connections.
  • Wireless Capabilities: Apart from its wired capabilities, the router supports wireless connectivity, enhancing its flexibility in different networking scenarios.
Network Features
  • Routing Protocols: The router supports a range of routing protocols, including OSPF and BGP, enabling dynamic and efficient routing in diverse network environments.
  • Quality of Service (QoS): To prioritize critical applications and ensure optimal network performance, the C819HG-4G-G-K9 incorporates QoS features.
  • IPv6 Support: As the transition to IPv6 becomes increasingly important, this router includes support for IPv6, ensuring compatibility with the latest networking standards.
Security Features
  • Firewall Protection: The integrated firewall provides a crucial line of defense against unauthorized access and potential security threats.
  • VPN Support: The router supports Virtual Private Network (VPN) technologies, allowing secure communication over the Internet, a vital feature for remote offices and telecommuting.
  • Intrusion Prevention System (IPS): With built-in IPS capabilities, the C819HG-4G-G-K9 can detect and prevent potential security breaches, enhancing overall network security.
Connectivity Options
  • 4G LTE: The integrated 4G LTE module ensures a reliable backup connection, particularly useful in scenarios where wired connectivity may be unavailable or disrupted.
  • Multiple WAN Interfaces: The router supports multiple WAN interfaces, providing flexibility and redundancy in connectivity options.
  • Serial Interfaces: Serial interfaces are available for connecting to legacy devices or specific networking equipment that requires serial connections.

Use Cases

The Cisco C819HG-4G-G-K9 router is well-suited for various use cases, thanks to its robust features and versatile design.

  • Small to Medium-Sized Businesses: For small to medium-sized businesses, the C819HG-4G-G-K9 offers a cost-effective and scalable networking solution. Its compact design allows for easy deployment in office spaces with a limited physical footprint, and the integrated security features provide a reliable defense against cyber threats.
  • Branch Office Connectivity: Branch offices often require a reliable and secure connection to the main corporate network. The C819HG-4G-G-K9, with its support for multiple WAN interfaces and advanced security features, is an ideal choice for ensuring seamless connectivity and data protection in branch office environments.
  • Remote Locations: In remote locations where traditional wired connections may be impractical, the integrated 4G LTE capabilities of the router become invaluable. It provides a stable and secure connection, ensuring that remote locations remain seamlessly connected to the central network.
  • Backup Connectivity: The C819HG-4G-G-K9 serves as an excellent backup solution for businesses that cannot afford downtime. In the event of a primary connection failure, the router can automatically switch to the integrated 4G LTE connection, minimizing disruptions and ensuring continuous operations.


The Cisco C819HG-4G-G-K9 Wireless Integrated Services Router is considered a high-performance device for several reasons:

  • Wireless WAN Connectivity: The router supports 4G LTE WWAN, with backward compatibility to 3G technologies such as EV-DO, HSPA+, and HSPA, providing high-speed wireless connectivity to the Internet or a private WAN, which is critical for business operations.
  • Routing and Security: The router supports advanced routing protocols, such as IPV4 and IPv6, and has built-in security features such as VPN, firewall, and intrusion prevention to protect the network from unauthorized access and malicious attacks. This ensures that the network is stable and secure, with fast performance.
  • Quality of Service (QoS): It can prioritize certain types of traffic, such as voice or video, to ensure that time-sensitive applications are delivered with a high level of quality. This feature allows the network to run smoothly, even when it is under heavy load.
  • VPN and Firewall: The router supports a variety of VPN protocols, such as IP Security (IPsec), Secure Sockets Layer (SSL), and Point-to-Point Tunneling Protocol (PPTP) and it can also provide Firewall services to protect your network from external threats, ensuring network security.
  • Manageability: The router is manageable remotely and it can be configured and maintained with Cisco IOS Software, which provides a range of management tools to help administrators optimize and troubleshoot the network.
  • High availability: The C819HG-4G-G-K9 is designed to operate in harsh environments, such as high temperature, humidity, or dust, it has a redundant power supply option and it is meant to operate in a network environment, making it more durable and reliable.

The Cisco C819HG-4G-G-K9 Wireless Integrated Services Router is designed to be a reliable device for small businesses, enterprise small branch offices, and teleworker sites. Some of the key reliability features of this router include:

  • Rugged and Compact Design: The device is built to operate in harsh environments, such as high temperature, humidity, or dust. The compact form factor also makes it suitable for small office spaces.
  • Redundant Power Supply: The router comes with an internal AC power supply, but it can also be used with an external power supply if necessary, it gives an option of redundant power, ensuring that the network stays up and running even if one of the power supplies fails.
  • High availability: The router is designed to operate in a network environment, making it more durable and reliable, it can continue operating even if one component fails.
  • Quality of Service (QoS): The router can prioritize certain types of traffic, such as voice or video, to ensure that time-sensitive applications are delivered with a high level of quality. This feature allows the network to run smoothly, even when it is under heavy load.
  • VPN and Firewall: The router supports a variety of VPN protocols, such as IP Security (IPsec), Secure Sockets Layer (SSL), and Point-to-Point Tunneling Protocol (PPTP) and it can also provide Firewall services to protect your network from external threats, ensuring network security.

General Information about this Cisco C819HG-4G-G-K9

  • Manufacturer: Cisco
  • Part Number or SKU# C819HG-4G-G-K9
  • Product Series: 800
  • Product Name: C819 Hardened 4G LTE for Global
  • Product Type: Wireless Integrated Services Router

Technical Specifications for Cisco 800-Series Router

  • Device Type: Router - 4-port switch (integrated)
  • Enclosure Type: Desktop
  • Connectivity Technology: Wired
  • Data Link Protocol: Ethernet, Fast Ethernet
  • Form Factor: Wall Mountable, Desktop

Best-fit Applications for Cisco 800-Series Router

  • Broadband Transmission Technology: Cellular
  • ISM Band: No
  • UNII Band: No
  • Cellular Generation: 4G
  • Cellular Network Supported:
    • LTE 800
    • LTE 900
    • LTE 1800
    • LTE 2100
    • LTE 2600
    • WCDMA 900
    • WCDMA 1900
    • WCDMA 2100
  • Cellular Data Connectivity Technology:
    • UMTS
    • HSPA
  • Total Number of Antennas: 2
  • Antenna Type: Dipole Antenna
  • Antenna Connector: TNC Connector
  • Features: Quality of Service (QoS)

Interfaces/Ports of Cisco 800-Series Router

  • Number of Network (RJ-45) Ports: 4
  • Network (RJ-11): No
  • VGA: No
  • Serial: Yes
  • USB: Yes
  • Powerline: No
  • PoE (RJ-45) Port: No
  • Management Port: Yes
  • Number of Broadband (RJ-45) Ports: 1

Environmental Parameters

  • Min Operating Temperature: -13 °F
  • Max Operating Temperature: 140 °F

Management & Protocol

  • Management:
    • MIB
    • VLAN
    • SNMP v1, v2, v3
    • Telnet
    • Web-based Management
    • DHCP
    • Cisco IOS Embedded Event Manager
    • Cisco Security Manager
    • Cisco Configuration Professional
    • CiscoWorks
  • Security Features:
    • L2TP
    • VPN
    • DES
    • 3DES
    • 128/192/256 bit AES
    • PKI
    • IPsec
    • NAT
    • SIP
    • Adaptive Control Technology
    • Firewall
    • Content Filtering
    • IPS
    • RADIUS
    • TACACS+
  • Firewall protection, NAT support, VPN support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, content filtering, DiffServ support, MAC address filtering, IPv6 support, Intrusion Prevention System (IPS), firmware upgradable, Low-latency queuing (LLQ), Class-Based Weighted Fair Queuing (CBWFQ), Weighted Fair Queuing (WFQ), Spanning Tree Protocol (STP) support, Access Control List (ACL) support, Quality of Service (QoS), Dynamic Multipoint VPN (DMVPN), RADIUS support, DHCP server, Virtual Route Forwarding-Lite (VRF-Lite), DNS proxy, DHCP relay, DHCP client
Compliant Standards
  • IEEE 802.1D, IEEE 802.1Q, IEEE 802.1x, CISPR 24, EN 61000-3-2, EN55022, ICES-003, EN 61000-3-3, EN55024, CISPR 22, EN 61000-6-1, EN 301.489.1, EN 61000-4-4, EN 61000-4-2, EN 61000-4-3, EN 61000-4-6, EN 61000-4-5, EN 61000-4-11, FCC CFR47 Part 15, EN300-386, UL 60950-1 Second Edition, EN 301.489.7, EN 301.489.24, EN 301.511, MIL-STD 810G, BSMI CNS 13438, EN 301.908, VCCI V-3, IP41, CSA C22.2 No. 60950-1 Second Edition, EN 60950-1 Second Edition, IEC 60950-1 Second Edition, SAE J 1455
Power Description
  • Power Source: AC Adapter
Compatibility Information
  • C819 Hardened 4G LTE for Global
  • 2 x Multiband 4G LTE Swivel-mount Dipole Antennae

In general, the Cisco C819HG-4G-G-K9 Ethernet Integrated Services Router stands out as a reliable and versatile networking solution for businesses of various sizes and types. Its robust features, including high-speed connectivity, integrated 4G LTE, advanced security, and compact design, make it well-suited for a range of use cases.

Whether used in small offices, branch locations, remote sites, or as a backup connectivity solution, the C819HG-4G-G-K9 delivers consistent performance and ensures the security and reliability of the network. With proper installation, configuration, and ongoing maintenance, businesses can leverage the capabilities of this router to create a resilient and efficient network infrastructure.

The Cisco C819HG-4G-G-K9 is a valuable addition to Cisco's 800 Series ISR lineup, providing a solid foundation for building secure and high-performance networks in today's dynamic business environment.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

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Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

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