Cisco ISR4351-VSEC/K9 Router – High-Performance Secure WAN Aggregation

Product Description

The Cisco ISR4351-VSEC/K9 is a modular enterprise router from the Cisco ISR 4000 series, designed for medium and large branch offices, WAN aggregation points, and secure edge deployments. This bundle integrates unified communications and security licenses, along with a PVDM4-64 digital signal processor module, making it suitable for organisations requiring integrated voice, video, and data routing in a single platform.

Technical Specifications

• Model: ISR4351-VSEC/K9
• Brand: Cisco
• Category: Network equipment, routers
• Bundle Content: Unified Communications (UC) and Security (SEC) licenses
• Included Module: PVDM4-64 (Packet Voice DSP Module)
• Platform Series: Cisco ISR 4000
• Form Factor: Modular chassis for service integration

Design Features

• Integrated service licensing for UC and security reduces additional hardware requirements.
• PVDM4-64 module provides on-board DSP resources for voice and conferencing applications.
• Modular architecture supports NIM (Network Interface Module) slots for flexible WAN and LAN connectivity.
• Designed for high-availability enterprise environments with redundant power and cooling options.
• Factory-bundled configuration simplifies deployment and procurement for channel partners.

Application Area

This router is deployed in enterprise branch offices across Poland and the CEE region as a WAN edge device, connecting remote sites to central data centers or cloud services. It supports converged traffic streams, including IP telephony, secure VPN tunnels, and business-critical application data. The integrated UC and security features make it suitable for organisations in finance, manufacturing, and public sector requiring reliable and policy-enforced network connectivity.