The Cisco ISR 4000 Series is a family of enterprise branch integrated services routers delivering converged WAN, security, compute, and voice services in a modular 1RU and 2RU platform. The series spans the ISR 4221 (50-100 Mbps, 2x GE, 2x NIM), ISR 4321 (50-100 Mbps, 3x GE, 2x NIM), ISR 4331 (100-300 Mbps, 3x GE, 2x NIM, 1x SM), ISR 4351 (200-400 Mbps, 3x GE, 3x NIM, 2x SM), ISR 4431 (500 Mbps-1 Gbps, 4x GE, 3x NIM), and ISR 4461 (1-2 Gbps, 4x GE, 4x SFP, 3x NIM, 3x SM) supporting broad NIM and SM module ecosystems for serial WAN, T1/E1, LTE, DSL, PoE switching, and UC applications. Running Cisco IOS XE, the ISR 4000 supports BGP, OSPF, EIGRP, MPLS, DMVPN, FlexVPN, Zone-Based Firewall, and hardware-accelerated IPsec VPN. Available new and refurbished with free priority shipping and Lifetime Warranty.
