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Cisco ISR 4321 Router ISR 4000 Series ISR4321 Enterprise Router

Cisco ISR4321 Integrated Services Router is a compact enterprise branch router from the Cisco 4000 Series ISR family, designed to provide secure WAN connectivity, application-aware services, and integrated network functions for branch offices and small enterprise deployments.

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Parameters Item Specification Product Model Cisco ISR4321/K9 Product Family Cisco 4000 Series Integrated Services Router Device Type Enterprise Integrated Services Router Form Factor 1RU Rack Mount / Desktop Performance 50 Mbps Base Throughput Performance Upgrade Up to 100 Mbps with Performance License Operating System Cisco IOS XE Software Processor Multicore High-Performance Processor Integrated GE Ports 2 × Gigabit Ethernet Ports WAN/LAN Interfaces 1 × RJ-45 Gigabit Ethernet + 1 × SFP Gigabit Ethernet NIM Slots 2 × Network Interface Module Slots ISC Slot 1 × Integrated Services Card Slot (PVDM4 Support) Service Module Slot Not Supported DRAM Memory 4GB Standard / Up to 8GB Maximum Flash Memory 4GB Standard / Up to 8GB Maximum USB Ports 1 × USB Type-A 2.0 Port Management Port 1 × Gigabit Ethernet Out-of-Band Management Port Routing Protocols BGP, OSPF, EIGRP, IS-IS, RIP, IPv4/IPv6 Routing VPN Support IPsec VPN, DMVPN, GETVPN, FlexVPN Security Features Zone-Based Firewall, ACL, NAT, IPS, Cisco TrustSec SD-WAN Support Cisco Catalyst SD-WAN Compatible Voice Support Unified Communications Gateway with PVDM4 Modules QoS Support Classification, Marking, Queuing, Traffic Policing NetFlow Support Flexible NetFlow / IPFIX High Availability Supports Redundant WAN Designs Power Supply External AC Power Supply / PoE Power Option PoE Support Up to 120W Standard / 260W with PoE Boost Input Voltage 100–240 VAC Operating Temperature 0°C to 40°C Dimensions Approx. 1.72 × 12.7 × 10 inches Weight Approx. 4.4 kg