Cisco ISR 4431 4GE 3NIM 8G Flash 4G DRAM | Enterprise Router — CON-L14HR-C920L24T

Keep critical branch traffic moving with the Cisco ISR 4431, a router designed for enterprise WAN edge environments where uptime, segmentation, and service flexibility matter. With 4 Gigabit Ethernet ports, 3 Network Interface Module slots, 8 GB of flash, and 4 GB of DRAM, it provides the capacity needed for routing, security services, and application-aware connectivity at the branch. This platform is built for teams that need more than basic connectivity. The ISR 4431 gives you expansion headroom for interface diversity and service integration, while its memory and flash profile supports the operational demands of modern branch infrastructure. That makes it a strong fit for sites that carry voice, data, and business-critical applications over a single edge device. For organizations standardizing on Cisco routing, this model offers a practical balance of performance and flexibility. It is well suited to deployments where replacing lower-tier hardware would create bottlenecks, but a larger chassis would add unnecessary cost and complexity. The result is a router that supports current branch requirements while leaving room for future service growth. Ideal For Branch WAN edge routing for distributed enterprise offices Voice and data convergence at a regional site Modular interface expansion for mixed connectivity requirements Standardized Cisco router deployment across branch locations Why This Product 1 More expansion flexibility than fixed-port branch routers 2 Better suited for multi-service sites than entry-level edge devices 3 Balanced memory and flash for enterprise branch operations 4 Designed for modular WAN edge deployments