REFURBISHED
Cisco
Cisco ISR4331/K9 Refurbished - Integrated Services Router
MPN: ISR4331/K9
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Lifetime
Warranty
ISO 9001
Certified Testing
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested
Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Tested to factory specification. Backed by 25 years of enterprise trust.
The Cisco ISR4331/K9 is part of the ISR 4000 Series platform, engineered to deliver high-performance routing and integrated services for enterprise branch office environments. As a Refurbished unit, it provides the same reliable Cisco performance at a significantly reduced cost compared to new hardware—making it an excellent choice for IT teams managing tight budgets without compromising on network capability.The ISR4331 supports modular WAN interface cards (WICs/NIMs), allowing organizations to tailor their connectivity to meet specific branch requirements including T1/E1, DSL, or broadband links. Integrated support for services such as firewall, VPN, quality of service (QoS), and voice makes this router a versatile all-in-one solution for converged branch deployments.
This router runs Cisco IOS XE, providing a modern, modular operating system with enhanced programmability and automation capabilities. The platform supports optional services performance licenses to unlock additional throughput as network demands grow, offering a scalable investment path.
Every Refurbished Cisco ISR4331/K9 sold by WhaleyComm undergoes inspection and testing to ensure it meets functional standards before shipping. Whether you are expanding an existing Cisco network infrastructure or deploying a new branch site, the ISR4331/K9 delivers enterprise-grade connectivity and integrated services at a fraction of the new unit cost.
Technical Specifications
{'Manufacturer'
'Cisco', 'Model / MPN': 'ISR4331/K9', 'Series': 'ISR 4000', 'Form Factor': '1U Rack-Mount', 'WAN Slots (NIM)': '3', 'On-Board GE Ports': '3', 'USB Ports': '2', 'Operating System': 'Cisco IOS XE', 'Condition': 'Refurbished'}
Ideal Use Cases
Enterprise Branch Office Connectivity
The ISR4331/K9 is purpose-built for enterprise branch deployments requiring reliable WAN routing and integrated security services. Its modular NIM slots allow WAN interface customization to match existing circuit types at each branch location.
VPN Concentrator for Remote Sites
Organizations can leverage the ISR4331's integrated VPN capabilities to establish secure site-to-site tunnels between branch and headquarters environments. This reduces the need for separate security appliances and simplifies branch network architecture.
Network Refresh or Lab Environment
IT teams looking to refresh aging branch infrastructure or build a realistic lab environment will find the Refurbished ISR4331/K9 an excellent value. It provides a fully functional Cisco IOS XE platform for testing, training, or staged deployments at a reduced capital cost.
What's Included
✔ Cisco ISR4331/K9 Refurbished Router Unit
✔ AC Power Supply
✔ Rack-Mount Ears
✔ Standard 30-Day WhaleyComm Hardware Warranty
Lifetime Warranty - No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. 25 years, 5,000+ customers.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
The Cisco ISR4331/K9 is compatible with the following platforms, modules, and software
✓
- **Cisco IOS XE Software** – Supported operating system for full feature functionality including routing protocols, QoS, and security services
✓
- **Cisco Network Interface Modules (NIMs)** – Compatible with NIM-family WAN interface cards for T1/E1, DSL, serial, and other WAN connection types
✓
- **Cisco Service Modules (SMs)** – Supports select SM-family modules for enhanced services
✓
- **Cisco DNA Center / Prime Infrastructure** – Compatible with Cisco's network management platforms for centralized configuration and monitoring
✓
- **Cisco Smart Licensing** – Supports Cisco's licensing model for feature and throughput tier management
✓
- **Third-Party Management Tools** – Compatible with SNMP-based and NetFlow-capable network management systems
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders ship within 1-2 business days.
Returns
Contact support for DOA or warranty issues.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
This unit is sold as Refurbished, meaning it has been previously deployed and has undergone inspection and functional testing by WhaleyComm prior to sale. It is not a new, factory-sealed unit.
Yes, WhaleyComm includes a standard 30-day hardware warranty with this Refurbished Cisco ISR4331/K9, covering defects in functionality. Please contact our team for extended warranty options.
The hardware unit is sold as-is without a guaranteed active software subscription. Customers should verify the existing IOS XE software version and confirm any Cisco Smart License or feature license requirements with their Cisco account team before deployment.
Yes, when properly configured and licensed, the ISR4331/K9 is a production-grade enterprise router capable of supporting branch office WAN routing, VPN, firewall, and QoS services. As with any Refurbished hardware, we recommend validating the unit's firmware version and license status prior to deployment.
Cisco ISR4331/K9 Refurbished - Integrated Services Router
$160.00
