Cisco CISCO1921-SEC/K9 Service Router
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Cisco CISCO1921-SEC/K9 2 Ports Gigabit Ethernet Router Refurbished

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Part Number#: CISCO1921-SEC/K9
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Short Description:
CISCO1921-SEC/K9 2 Onboard Gigabit Ethernet 10-100-1000Base-T VLAN, VPN & Ipv6 Support 2 EHWIC Slots 256MB USB Flash 512MB DRAM 1921 Integrated Services Router | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Overview of the Cisco CISCO1921-SEC/K9 2 Ports Gigabit Ethernet Router

In the rapidly evolving landscape of networking and information technology, having a robust and secure infrastructure is crucial for businesses and organizations. The Cisco 1921-SEC/K9 2-ports Integrated Services Router stands as a reliable solution to meet these demands. In this detailed exploration, we will delve into the key features and specifications of the Cisco 1921-SEC/K9, emphasizing its onboard Gigabit Ethernet, support for VLAN, VPN, IPv6, EHWIC slots, USB Flash storage, and DRAM capacity.

Unveiling the Cisco 1921-SEC/K9 2 Ports Integrated Service Router

Overview of Cisco 1921-SEC/K9

The Cisco 1921-SEC/K9 is part of the Cisco 1900 Series Integrated Services Routers, designed to deliver enhanced performance and security for small to medium-sized businesses. It is equipped with advanced features to facilitate efficient data transmission, secure communications, and seamless integration within a network.

Onboard Gigabit Ethernet

At the heart of the Cisco 1921-SEC/K9 lies its onboard Gigabit Ethernet capability. This feature ensures high-speed data transfer within the network, supporting speeds of 10/100/1000Base-T. The router's Gigabit Ethernet ports enable quick and reliable communication between devices, fostering a smooth and responsive network environment.

VLAN (Virtual Local Area Network) Support

The Cisco 1921-SEC/K9 comes equipped with VLAN support, a feature essential for network segmentation and management. VLANs allow the creation of logically segmented networks within a physical network, enhancing security and simplifying network administration. This capability is particularly valuable in environments where different departments or user groups need isolated communication channels.

VPN (Virtual Private Network) Capabilities

Security is paramount in today's interconnected world, and the Cisco 1921-SEC/K9 addresses this need with its built-in VPN support. VPNs create secure tunnels over public networks, enabling encrypted communication between remote locations. The router's VPN capabilities enhance the confidentiality and integrity of data, making it an ideal choice for organizations with geographically dispersed offices.

IPv6 Support

As the internet continues to grow, the transition to IPv6 becomes imperative due to the exhaustion of IPv4 addresses. The Cisco 1921-SEC/K9 is future-ready with its support for IPv6, the latest version of the Internet Protocol. IPv6 provides a vast address space, ensuring the continued expansion of the internet and accommodating the increasing number of connected devices.

EHWIC Slots for Expansion

Flexibility is a key consideration in network design, and the Cisco 1921-SEC/K9 addresses this by featuring two Enhanced High-Speed WAN Interface Card (EHWIC) slots. These slots provide the capability to add modular interfaces, expanding the router's functionality according to specific networking requirements. This adaptability makes the router suitable for a wide range of applications, from voice and data integration to security services.

Ample Memory Resources: 256MB USB Flash and 512MB DRAM

Memory is a critical component in the efficient operation of a router, and the Cisco 1921-SEC/K9 doesn't disappoint. With a 256MB USB Flash storage, the router allows for secure storage of configurations, firmware updates, and other essential files. Additionally, the 512MB Dynamic Random Access Memory (DRAM) ensures smooth and responsive performance, even in demanding network environments.

1921 Integrated Services Router: A Holistic Solution

The integration of these features and capabilities within the Cisco 1921-SEC/K9 makes it a holistic solution for businesses seeking a reliable, secure, and high-performance router. Whether it's facilitating seamless communication, enhancing security through VPNs, or adapting to evolving network needs with EHWIC slots, this router stands as a versatile choice for network administrators.

USB Flash Storage: Convenient Data Transfer and Storage

With 256MB of USB Flash storage, the Cisco 1921-SEC/K9 router facilitates convenient data transfer and storage. USB Flash storage can be used for firmware upgrades, configuration backups, and storing critical data. This feature enhances the router's usability and ensures that administrators can easily manage and maintain the device.

DRAM Capacity: Efficient Memory Management

The Cisco 1921-SEC/K9 router is equipped with 512MB of Dynamic Random-Access Memory (DRAM). Adequate DRAM capacity is essential for efficient memory management, enabling the router to handle concurrent processes, run applications smoothly, and manage network traffic effectively. The generous DRAM capacity of the Cisco 1921-SEC/K9 contributes to its robust performance in various networking scenarios.

Applications of CISCO1921-SEC/K9 2 Ports Router

The CISCO1921-SEC/K9 router's robust features and specifications make it suitable for various applications across different industries. Let's explore some key scenarios where this router can play a pivotal role:

Small to Medium-Sized Businesses (SMBs) Networking

The CISCO1921-SEC/K9 is well-suited for SMBs looking for a reliable and scalable networking solution. Its two Gigabit Ethernet ports provide high-speed connectivity for data-intensive tasks, while the EHWIC slots allow for future expansion as the business grows.

Branch Office Connectivity

For organizations with multiple branch offices, the router's compact design and versatile connectivity options make it an ideal choice. The USB ports and EHWIC slots enable the integration of additional modules and peripherals, ensuring seamless connectivity and efficient data transfer between branch offices and the central network.

Security-Focused Deployments

The "SEC" in CISCO1921-SEC/K9 signifies its emphasis on security features. This makes the router suitable for deployments where data security is paramount, such as in financial institutions, healthcare organizations, or government agencies. The router's robust security features help in safeguarding sensitive information and preventing unauthorized access.

Remote Network Management

The inclusion of USB and Console ports simplifies remote management tasks. IT administrators can easily configure and monitor the router remotely, making it an ideal choice for organizations with distributed networks or remote office locations.

High-Performance Data Transfer

With Gigabit Ethernet ports and efficient memory configuration, the router excels in scenarios where high-performance data transfer is crucial. This makes it suitable for applications such as video conferencing, large file transfers, and other data-intensive tasks.


The CISCO1921-SEC/K9 Cisco 2 Ports Integrated Service Router is designed to provide advanced security features to protect against a variety of network threats. These features may include firewalls, intrusion prevention systems, VPN support, and other security technologies.

In terms of deployment and configuration options, the CISCO1921-SEC/K9 router offers a variety of options to meet the needs of different environments. This may include support for a wide range of routing protocols, VLANs, and Quality of Service (QoS) settings. Additionally, the router may offer a web-based interface or command-line interface for easy configuration and management. Additionally, this router can be integrated with other security and networking devices to provide an end-to-end solution that can secure your network and make it more efficient.

Network Management and Security

The Cisco 1921 Integrated Service Router is a popular network router used in enterprise and small business environments. It is designed to provide secure connectivity to the internet, as well as local area networks (LANs) and wide area networks (WANs). The router also includes advanced security features to protect against threats such as malware and unauthorized access.

Network Management: The Cisco 1921 router can be managed using several methods, including the Cisco IOS command-line interface (CLI), Simple Network Management Protocol (SNMP), and Cisco Configuration Professional (CCP). The CLI is a powerful tool for configuring and managing the router, while SNMP can be used to monitor and manage network devices remotely. CCP is a web-based interface that simplifies the configuration of the router, making it easier for non-technical users to manage the network.

Security Features: The Cisco 1921 router includes several advanced security features to protect against threats such as malware and unauthorized access. These include:

  • Firewall: The router includes an integrated firewall that can be configured to block traffic from specific IP addresses or ports, providing an additional layer of security.
  • VPN: The router supports VPN connections using IPsec or SSL encryption, allowing remote users to securely access the network from anywhere.
  • Intrusion Prevention System (IPS): The router can be configured to detect and block known threats using an IPS, which monitors network traffic for malicious activity.
  • Access Control Lists (ACLs): The router can be configured to use ACLs to control access to the network, allowing only authorized users or devices to connect.
  • Secure Boot: The router includes a secure boot feature that verifies the integrity of the firmware and operating system before it boots up, preventing unauthorized changes to the router's configuration.

General Information of the Cisco CISCO1921-SEC/K9 Integrated Service Router

  • Manufacturer: Cisco
  • Model Number or SKU# CISCO1921-SEC/K9
  • Product Type: Service Router

Interfaces/Ports for 2 Ports Services Router

  • Total Number of Ports: 2
  • USB: Yes
  • Management Port: Yes
  • Ethernet Technology: Gigabit Ethernet
  • Number of Total Expansion Slots: 2
  • Expansion Slot Type: HWIC

Features of Ethernet Router

  • Firewall Protection
  • VPN Support
  • MPLS Support
  • VLAN Support
  • Syslog Support
  • IPv6 Support
  • Class-based Weighted Fair Queuing (CBWFQ)
  • Weighted Random Early Detection (WRED)
  • Quality of Service (QoS)
  • Web Services Management Agent (WSMA)
  • TR-069 Agent
  • Netflow

Routing Protocol for Integrated Service Router

  • OSPF
  • IS-IS
  • BGP
  • PIM-SM
  • Static IP Routing
  • IGMPv3
  • GRE
  • Static IPv4 Routing
  • Static IPv6 Routing
  • Policy-based Routing (PBR)
  • MPLS

Expansion / Connectivity

  • Interfaces:
    • 2 x 10Base-T/100Base-TX/1000Base-T - RJ-45
    • Serial: 1 x Console
    • Management: 1 x Console - Mini-USB Type B
    • Serial: 1 x Auxiliary
    • Hi-Speed USB: 1 x 4 Pin USB Type A
  • Expansion Slot(s):
    • 2 (total) / 1 (free) x EHWIC

Power Specifications

  • AC Input Voltage: 100-240V ~
  • AC Input Frequency: 47-63 Hz
  • AC Input Current Range AC Power Supply (Maximum) (Amps): 1.5-0.6
  • AC Input Surge Current: <50A
  • Typical Power (No Modules): 25W
  • Maximum Power Capacity with AC Power Supply: 60W
  • Maximum Power Capacity with PoE Power Supply (Platform Only): 70W
  • Maximum PoE Device Power Capacity with PoE Power Supply: 80W
  • DC Power Input: 32-60 VDC, 4A, positive or negative, single source
  • DC Input Wire Size: AWG 14 (2.0 mm2)
  • Safety Ground-Wire Size: AWG 14 (2.0 mm2), minimum
  • Wire Terminal (Lug): Amp/Tyco No.32957
  • Overcurrent Protection: 20A maximum
Environmental Specifications
  • Temperature (5906 ft/1800m Maximum Altitude): 32-104°F (0-40°C)
  • Temperature (9843 ft/3000m Maximum Altitude): 32-77°F (0-25°C)
  • Altitude: 10,000 ft (3,000m)
  • Humidity: 10 to 85% Relative Humidity (RH)
  • Acoustic (Sound Pressure - Typical/Maximum): 32.99/58.33 dBA
Regulatory Compliance


  • UL 60950-1
  • CAN/CSA C22.2 No. 60950-1
  • EN 60950-1
  • AS/NZS 60950-1
  • IEC 60950-1


  • 47 CFR, Part 15
  • ICES-003 Class A
  • EN55022 Class A
  • CISPR22 Class A
  • AS/NZS 3548 Class A
  • VCCI V-3
  • EN 300-386
  • EN 61000 (Immunity)
  • EN 55024, CISPR 24
  • EN50082-1


  • TIA/EIA/IS-968
  • CS-03
  • ANSI T1.101
  • IEEE 802.3
  • RTTE Directive

In general, the Cisco 1921-SEC/K9 Integrated Services Router offers a comprehensive set of features and capabilities to meet the networking needs of modern businesses. From high-speed Gigabit Ethernet and versatile 10-100-1000Base-T support to advanced security features such as VLANs and VPNs, this router provides a robust and flexible solution. With IPv6 support, modular EHWIC slots, USB Flash storage, and ample DRAM, the Cisco 1921-SEC/K9 is well-equipped to handle the evolving challenges of contemporary networking. Whether it's optimizing network performance, enhancing security, or preparing for future technological advancements, this router stands as a reliable and adaptable choice for organizations seeking a powerful networking solution.

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

About Refurbished Products

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.

Here, you can check more available conditions of your desired product CISCO1921-SEC/K9 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

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(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

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