Cisco ISR4331R-AX/K9 – Modular Enterprise Router

Equipment Overview

The Cisco ISR4331R-AX/K9 is an enterprise-grade modular router from the Cisco ISR 4000 series, designed for secure WAN aggregation and branch office connectivity. It supports integrated services such as routing, security, and application performance optimization. The platform is intended for medium to large sites requiring high availability and service flexibility. This AX bundle configuration includes the router with enhanced feature set capabilities for advanced network deployments.

Main Parameters

• Model: ISR4331R-AX/K9
• Brand: Cisco
• Form Factor: Modular router chassis
• Interface Slots: 2 NIM (Network Interface Module) slots
• Onboard Ports: 3 GE (Gigabit Ethernet) ports
• Default Memory: 4 GB DRAM, 4 GB Flash
• Licensing: IP Base (IPB) included
• Platform Support: Cisco IOS XE software

Key Advantages

The ISR4331R-AX/K9 provides scalable performance for concurrent services without compromising throughput. Its modular NIM architecture allows for future interface expansion, reducing hardware replacement costs. This model is selected for enterprise projects requiring reliable branch routing, integrated security features, and investment protection through modular upgrades.

Compatibility & Integration

The router integrates with Cisco IOS XE based management systems, including Cisco DNA Center and vManage for SD-WAN deployments. It supports standard Ethernet and routing protocols (e.g., BGP, OSPF, MPLS) and is compatible with Cisco SFP transceivers for fiber connectivity. The platform adheres to industry standards for network equipment interoperability in multi-vendor environments.