Cisco ISR 4331 3GE Router | Enterprise WAN, ISR 4000 — CON-L2NB3-ASR10S2H

Keep branch sites connected with a router designed for enterprise edge traffic, service integration, and modular expansion. Cisco ISR 4331 combines 3 Gigabit Ethernet ports with 2 NIM slots and 1 SM slot, giving infrastructure teams room to adapt WAN, voice, and application requirements without replacing the platform. With 4 GB flash and 4 GB DRAM, this ISR 4000 model is built for dependable branch routing, policy enforcement, and local service delivery. It fits environments where uptime, predictable performance, and long lifecycle planning matter more than commodity hardware. The modular architecture helps standardize deployments across distributed offices while preserving flexibility for future interface or service needs. For teams comparing entry-level routers to enterprise branch platforms, the ISR 4331 stands apart through its expansion options and Cisco IOS-based operational model. It is a practical choice for organizations that need a stable edge foundation for routing, segmentation, and secure connectivity across business-critical sites. Ideal For Primary WAN router for a branch office Modular edge platform for distributed enterprise sites Connectivity hub for voice and data services Standardized router deployment across multi-site infrastructure Why This Product 1 More expansion flexibility than fixed-port branch routers 2 Built on the Cisco ISR 4000 platform 3 Supports modular service and interface growth 4 Better fit for standardized enterprise branch rollouts