Cisco ISR4331/K9 3-Port Gigabit Ethernet Integrated Services Router with 2 NIM Slots

Cisco ISR4331/K9 Overview

The Cisco ISR4331/K9 is an enterprise-class Integrated Services Router designed for branch offices, WAN connectivity and modular enterprise network deployments. It is part of the Cisco ISR 4000 Series and combines routing, security and network service capabilities in a compact 1RU platform.

The router provides 3 onboard Gigabit Ethernet interfaces and supports modular expansion through 2 Network Interface Module (NIM) slots. It also includes 1 SM slot and 1 ISC slot, allowing organizations to expand functionality according to their networking requirements.

With 4 GB DRAM and 4 GB Flash memory as the default configuration, the ISR4331/K9 provides the processing and storage resources required for enterprise routing, security and network services. Cisco IOS XE provides the software foundation for advanced enterprise networking features.

Key Features

Interfaces & Modular Expansion

The ISR4331/K9 is designed with a modular architecture that allows organizations to customize the router for different branch and WAN requirements. Its onboard Gigabit Ethernet interfaces provide standard network connectivity, while the NIM and SM slots enable additional interface and service expansion.

• 3 × onboard Gigabit Ethernet interfaces
• 2 × NIM slots for modular network interfaces
• 1 × SM slot for service-module expansion
• 1 × ISC slot for compatible integrated service cards
• Modular architecture for flexible enterprise deployments

Enterprise Networking Capabilities

The Cisco ISR4331/K9 is designed to support enterprise branch networking requirements including routing, WAN connectivity, security services and modular network expansion. Cisco IOS XE provides a modern software architecture for deploying a broad range of enterprise network services.

Security & Network Services

The ISR4331/K9 supports Cisco enterprise security and network service capabilities through Cisco IOS XE and compatible software licensing. It can be integrated into secure WAN architectures and used for routing, VPN and other enterprise network services.

• Enterprise routing and WAN connectivity
• IPsec VPN capabilities with appropriate licensing
• Firewall and security services with appropriate licensing
• Access control and network security features
• Quality of Service (QoS) capabilities
• Modular network-service expansion

Ideal Applications

• Enterprise branch offices
• Corporate WAN environments
• Remote office connectivity
• Distributed enterprise networks
• Secure WAN deployments
• Modular network infrastructure
• Enterprise routing and network services
• Service-provider and commercial network environments

Product Lifecycle

Why Choose Cisco ISR4331/K9?

The Cisco ISR4331/K9 provides a flexible enterprise routing platform with three onboard Gigabit Ethernet interfaces and extensive modular expansion through NIM, SM and ISC slots. Its Cisco IOS XE operating system supports enterprise routing, security and WAN services.

With 4 GB DRAM, 4 GB Flash and a modular 1RU design, the ISR4331/K9 can be configured for a wide range of branch-office and enterprise networking requirements. For new deployments, Cisco's listed replacement is the C8200-1N-4T.