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Cisco ISR4351-SEC/K9-RF 4351 Router - Refurbished - 3 Ports - 10 Expansion Slots - Gigabit Ethernet - 1U Rack/Wall Mountable - 90 Day Warranty

SKU: ISR4351-SEC/K9-RF
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MSRP: $8,526.99
$8,526.99
$7,602.99
Save: $924.00 (10.84%)
Warranty Information: 90 Day
Condition: Refurbished
Width: 43.82 (cm)
Height: 8.89 (cm)
Depth: 46.99 (cm)

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Product Features

Description

Product Overview

The Cisco 4351 Router is a refurbished Integrated Services Router designed for secure and scalable edge networking deployments. As part of the Cisco 4000 series, this model delivers reliable routing with essential security features, making it suitable for small to medium business environments, branch offices, and managed service provider networks.

This unit comes with a 90-day limited warranty and includes a SEC License, providing baseline security capabilities for protecting network traffic. Its 1U form factor allows flexible installation in standard racks or on walls, optimizing space in server rooms or network closets while maintaining professional-grade performance.

Relevant factors for this section include License Type, Total Number of Ports, Powerline, Management Port. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.

Dimensions
Width
17.25" (438.15 mm)
Depth
18.50" (469.90 mm)
Height
3.50" (88.90 mm)
Weight
27.30 lb (12383.07 g)
Network & Ports
Total Ports3
Management PortYes
Ethernet TechnologyGigabit Ethernet
Expansion & Performance
Expansion Slots10
Network Technology10/100/1000Base-T
VoIP SupportYes
Physical & Warranty
Form FactorRack-mountable, Wall Mountable
Rack Unit1U
Warranty90 Day

Technical Overview

The Cisco 4351 Router features three total ports, including a dedicated management port for reliable network administration and monitoring. It supports Gigabit Ethernet technology with 10/100/1000Base-T network compatibility, ensuring data transfer rates up to 1000 Mbps over twisted-pair cabling for efficient local and wide area connectivity.

With 10 expansion slots, this router offers significant scalability for adding modules such as additional network interfaces, security hardware, or WAN acceleration cards. It supports VoIP for integrated voice communications but does not include Power over Ethernet (PoE) ports, requiring separate power sources for connected devices.

Relevant factors for this section include License Type, Total Number of Ports, Powerline, Management Port. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.

Height3.50" (88.90 mm)
Width17.25" (438.15 mm)
Depth18.50" (469.90 mm)
SEC LicenseGigabit EthernetVoIP Supported

Key Product Advantages

This router combines essential routing functions with built-in security features, offering a cost-effective solution for organizations needing reliable edge network performance without the expense of new hardware. Its refurbished condition provides like-new functionality with thorough testing and certification.

These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Scalable Design, Management Efficiency.

Scalable Design

Ten expansion slots allow for future network growth, enabling customization with additional interfaces, security modules, or specialized networking cards to meet evolving business requirements.

  • Supports modular upgrades
  • Flexible configuration options

Management Efficiency

The dedicated management port simplifies network administration, providing secure access for configuration, monitoring, and troubleshooting without impacting production traffic.

  • Dedicated administrative access
  • Enhanced network control

Deployment / Use Cases

The Cisco 4351 Router is ideal for edge networking scenarios where reliable routing and basic security are paramount. Its combination of port density, expansion capability, and compact form factor makes it suitable for various deployment environments.

Common use cases include serving as the primary router for small business networks, providing connectivity for branch offices in distributed enterprises, or functioning as a secure gateway in managed service provider offerings. The wall-mountable option also makes it practical for installations where rack space is limited, such as in retail locations, remote sites, or educational facilities.

Relevant factors for this section include License Type, Total Number of Ports, Powerline, Management Port. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.

Form Factor Rack-mountable,Wall Mountable
Ports 3
Weight 27.30 lb (12383.07 g)

Physical Profile

This router measures 3.50 inches in height, 17.25 inches in width, and 18.50 inches in depth, with an approximate weight of 27.30 pounds. The 1U rack-mountable design fits standard 19-inch racks, while wall-mount capability provides installation versatility for space-constrained locations. The compact footprint makes it suitable for server rooms, network closets, or wall-mounted installations where efficient use of space is essential.

Dimensions
Width
17.25" (438.15 mm)
Depth
18.50" (469.90 mm)
Height
3.50" (88.90 mm)
Weight
27.30 lb (12383.07 g)
[custom-highlights]

Highlights

  • Refurbished Cisco 4351 Router with 90-day warranty
  • Three total ports including dedicated management port
  • Ten expansion slots for future network scalability
  • Gigabit Ethernet with 10/100/1000Base-T support
  • VoIP compatible for integrated voice communications
  • 1U rack-mountable and wall-mountable form factor
  • SEC License for baseline security functionality
  • Compact dimensions: 3.50" H × 17.25" W × 18.50" D
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerCisco Systems, Inc
Manufacturer Part NumberISR4351-SEC/K9-RF
Brand NameCisco
Product Series4000
Product Model4351
Product Name4351 Router
Product ConditionRefurbished
Product TypeRouter
Technical Information
License TypeSEC License
Interfaces/Ports
Total Number of Ports3
PowerlineNo
Management PortYes
I/O Expansions
Total Number of Expansion Slots10
Network & Communication
Ethernet TechnologyGigabit Ethernet
Network Technology10/100/1000Base-T
VoIP SupportedYes
Power Description
PoE (RJ-45) PortNo
Physical Characteristics
Compatible Rack Unit1U
Form FactorRack-mountable,Wall Mountable
Height3.50" (88.90 mm)
Width17.25" (438.15 mm)
Depth18.50" (469.90 mm)
Weight (Approximate)27.30 lb (12383.07 g)
Warranty
Limited Warranty90 Day
[/custom-specifications][custom-faq]

FAQ

What is the warranty period for this refurbished Cisco router?

This refurbished Cisco 4351 Router comes with a 90-day limited warranty. This warranty covers defects in materials and workmanship, providing assurance of reliable performance for enterprise networking deployments. Refurbished units undergo thorough testing and certification to ensure they meet functional specifications before shipment.

How many ports does this router have and what types are included?

The Cisco 4351 Router has three total ports, including a dedicated management port for network administration. The ports support Gigabit Ethernet technology with 10/100/1000Base-T compatibility, delivering data transfer rates up to 1000 Mbps. The management port enables secure configuration and monitoring without affecting production network traffic.

What expansion capabilities does this router offer?

This router provides ten expansion slots for adding modules such as additional network interfaces, security hardware, or specialized networking cards. This scalability allows organizations to customize the router for specific requirements, supporting future network growth and technology upgrades without replacing the entire unit.

Can this router be mounted in a rack or on a wall?

Yes, the Cisco 4351 Router features a 1U form factor that is both rack-mountable and wall-mountable. The rack-mountable design fits standard 19-inch racks for data center or server room installations, while the wall-mount option provides flexibility for space-constrained environments like retail locations or remote offices.

Does this router support Power over Ethernet (PoE)?

No, this router does not include Power over Ethernet (PoE) ports. Connected devices such as IP phones, wireless access points, or security cameras will require separate power sources or PoE injectors. The router focuses on routing and security functions rather than power delivery through network cables.

What security features are included with this router?

This router includes a SEC License that provides baseline security capabilities for protecting network traffic. While specific security features depend on configuration and additional modules, the SEC License enables essential security functions appropriate for edge networking deployments, helping to safeguard against common network threats.

[/custom-faq]
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Cisco ISR4351-SEC/K9-RF 4351 Router - Refurbished - 3 Ports - 10 Expansion Slots - Gigabit Ethernet - 1U Rack/Wall Mountable - 90 Day Warranty
MSRP: $8,526.99
$8,526.99
$7,602.99
Save: $924.00 (10.84%)
Out of stock