The Cisco ISR4331/K9 is a modular integrated services router designed for branch office and mid-market deployments. It features three onboard Gigabit Ethernet ports, two NIM (Network Interface Module) slots for flexible WAN/LAN expansion, one ISC (ISR Service Compression) slot, and one SM (Service Module) slot for advanced services. Standard configuration includes 4GB Flash memory and 4GB DRAM. The ISR4331 supports throughput up to 200 Mbps and integrates security, voice, and WAN optimization capabilities. Typical applications include branch connectivity, MPLS VPN termination, site-to-site VPN, and integrated voice/data services. Compatible with Cisco IOS XE software and ISR 4300 Series ecosystem. New unit, tested and guaranteed; available via quote.
