Cisco-ISR4331/K9
The Cisco ISR4331/K9 is an enterprise Integrated Services Router (ISR) designed for branch offices, small and medium-sized businesses, and distributed enterprise networks. It provides 3 integrated Gigabit Ethernet ports, modular expansion through NIM and service-module slots, and support for advanced routing, security, VPN, voice, and application services.
Description
The Cisco ISR4331/K9 belongs to the Cisco 4000 Series Integrated Services Routers, providing a flexible platform for enterprise branch and WAN connectivity. It combines routing, security, network services, and application capabilities within a modular chassis.
The router features two Gigabit Ethernet RJ-45 ports and one Gigabit Ethernet SFP/RJ-45 combination interface, providing flexible connectivity for LAN and WAN environments. Its modular design includes two NIM slots and one Enhanced Service Module (SM-X) slot, allowing additional network interfaces and services to be integrated as requirements grow.
The ISR4331/K9 is powered by Cisco’s IOS XE operating system and supports a broad range of enterprise networking technologies, including dynamic routing, IPv4/IPv6, QoS, NAT, firewall functionality, IPsec VPN, and secure WAN connectivity.
The platform also supports Cisco’s Application Experience (AppX) capabilities, enabling application visibility and optimization features for distributed enterprise environments. With its modular architecture and integrated services, the ISR4331/K9 is well suited to branch offices requiring more than basic routing.
Key Specifications
| Feature | Specification |
|---|---|
| Brand | Cisco |
| Series | ISR 4000 Series |
| Model | ISR4331/K9 |
| Platform Type | Integrated Services Router |
| Gigabit Ethernet Ports | 3 |
| Integrated Interfaces | 2 × GE RJ-45 + 1 × GE RJ-45/SFP |
| NIM Slots | 2 |
| Service Module Slot | 1 × SM-X |
| Operating System | Cisco IOS XE |
| WAN Connectivity | Gigabit Ethernet |
| VPN | IPsec VPN |
| IPv4 / IPv6 | Supported |
| QoS | Supported |
| Security | Integrated Security Features |
| Form Factor | 1RU Rack-Mountable |
| Application | Branch / WAN / Enterprise Routing |
Key Features & Benefits
- 3 × Gigabit Ethernet interfaces
- Flexible RJ-45 and SFP connectivity
- 2 × NIM expansion slots
- 1 × SM-X service module slot
- Cisco IOS XE operating system
- Enterprise IPv4 and IPv6 routing
- IPsec VPN support
- Network Address Translation (NAT)
- Quality of Service (QoS)
- Integrated security capabilities
- Modular architecture for future expansion
- Application visibility and optimization capabilities
- Designed for branch-office deployments
- 1RU rack-mountable form factor
- Suitable for voice, video, data, and business applications
Recommended Applications
- Enterprise Branch Offices
- Small & Medium Businesses
- WAN Connectivity
- Branch Routing
- VPN Gateways
- Corporate Network Infrastructure
- Remote Office Connectivity
- Voice & Data Networks
- Hybrid WAN Deployments
- Distributed Enterprise Networks
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