Cisco ISR 4331 3GE Router | Enterprise WAN, VPN, Branch — CON-L2NBD-AFE220M5

Keep critical branch services online with a router designed for controlled growth and dependable WAN edge operation. The Cisco ISR 4331 combines 3 Gigabit Ethernet ports with 2 Network Interface Module slots and 1 Service Module slot, giving infrastructure teams room to adapt connectivity as site requirements change. Its 4 GB flash and 4 GB DRAM support the platform resources needed for routing, policy enforcement, and branch services in a compact footprint. This model is a strong fit for organizations that need more than basic connectivity. The modular architecture helps separate a short-term deployment from a platform that can absorb future interface or service requirements without replacing the entire router. That matters in branch environments where downtime, truck rolls, and hardware churn carry real cost. For teams standardizing on Cisco ISR platforms, this configuration offers a practical balance of interface density, expansion flexibility, and enterprise routing capability. It is well suited to remote offices, retail locations, and distributed sites that need consistent WAN access and room for service modules or interface growth. Ideal For Branch office WAN edge connectivity Remote site routing with modular expansion needs Retail network aggregation and uplink termination Distributed enterprise branch deployments Why This Product 1 Adds modular expansion with 2 NIM slots and 1 SM slot 2 Provides 3 Gigabit Ethernet ports for branch connectivity 3 Includes 4 GB flash and 4 GB DRAM for platform resources 4 Fits enterprise branch deployments that need Cisco ISR architecture