Cisco ISR4321/K9 Integrated Services Router – Secure WAN Connectivity for Branch Office Networks

✅ Key Features

• Model: ISR4321/K9 – Cisco 4000 Series Integrated Services Router for enterprise WAN
• Gigabit Ports: Two integrated Gigabit Ethernet interfaces for flexible WAN or LAN use
• Performance: Supports up to 50 Mbps throughput by default, software upgradeable to 100 Mbps
• Security: Advanced security features including IPsec VPN, firewall, and secure boot
• Design: Compact 1RU rackmount form factor perfect for remote branch installations
• OS: Runs on Cisco IOS XE for advanced programmability and automation
• Modular Architecture: Includes NIM slots and PVDM support for future upgrades
• Applications: Built for enterprise edge, branch networks, or cloud-managed WAN environments
• Management: Supports centralized and cloud-based management via Cisco DNA Center
• Reliability: Engineered for 24/7 uptime with redundant power options

📦 Description

The Cisco ISR4321/K9 Integrated Services Router is purpose-built for delivering secure, scalable, and high-performance WAN connectivity in branch and remote office environments. This model supports up to 50 Mbps of throughput by default—upgradable to 100 Mbps—making it ideal for small-to-mid-sized deployments requiring reliability and future-ready features.

Its modular architecture includes NIM and PVDM slots, enabling integration of voice, data, and security services over a single device. With dual Gigabit Ethernet interfaces and a compact 1RU form factor, it’s easily deployable in constrained rack environments without sacrificing performance.

Cisco’s IOS XE operating system ensures robust management, automation, and programmability across enterprise environments, while advanced security features—like IPsec VPN, secure boot, and zone-based firewall—safeguard the network edge against modern threats.

Whether managing remote offices, implementing hybrid WAN, or building a secure connection to cloud infrastructure, the ISR4321/K9 delivers the performance and flexibility that IT administrators trust for long-term scalability.

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