Cisco ISR4331/K9 – Integrated Services Router
3 x Network Interface Modules | Up to 100 Mbps Performance | Security, Voice, WAN Services | Cisco IOS XE Software
Product Overview
The Cisco ISR4331/K9 is a powerful, modular Integrated Services Router from the ISR 4000 Series, designed for branch offices needing high-performance routing, security, voice, and application services in a compact form factor. Offering intelligent WAN capabilities and support for advanced encryption, unified communications, and application optimization, the ISR4331 is ideal for modern enterprise edge deployments.
This router delivers up to 100 Mbps performance, upgradeable via license, and runs on the Cisco IOS XE operating system, allowing for centralized management and SD-WAN integration. It’s purpose-built to protect investment and ensure scalability as business needs evolve.
Key Features
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Modular design with 3 NIM slots and 2 SM slots for expansion
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Integrated security and application services including firewall and VPN
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Supports voice, video, data, and wireless services
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Multi-core CPU architecture with control and data plane separation
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100 Mbps default throughput, scalable up to 300 Mbps with license
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Ideal for mid-size and large branch deployments
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