ISR4321/K9 Overview Cisco 4321 Integrated Services router is design to deliver advanced services to the small enterprise branch environment. It delivers 50Mbps thoughtput by default. With pay-as-you-grow performance, you can increase forwarding capacity to 100Mbps by buying FL-4320-PERF-K9 licenses. Compare to Similar Items Technical Specifications ISR4461/K9 ISR4451-X/K9 ISR4431/K9 ISR4351/K9 ISR4331/K9 ISR4321/K9 ISR4221/K9 Aggregate Throughput 1.5Gbps 1 Gbps to 2 Gbps 500 Mbps to 1 Gbps 200 Mbps to 400 Mbps 100 Mbps to 300 Mbps 50 Mbps to 100 Mbps 35 Mbps to 75 Mbps Total onboard WAN or LAN 10/100/1000 ports 4 4 4 3 3 2 2 RJ-45-based ports 4 4 4 3 2 2 2 SFP-based ports 4 4 4 3 2 1 1 Enhanced service-module slots 3 2 0 2 1 0 0 Doublewide service-module slots 2 1 (assumes no singlewide SM-X modules installed) 0 1 (assumes no singlewide SM-X modules installed) 0 0 0 NIM slots 3 3 3 3 2 2 2 OIR (all I/O modules) Yes Yes Yes Yes Yes Yes No Onboard ISC slot 1 1 1 1 1 1 No ISR4321/K9 Specification ISR4321/K9 Specifications System Throughput 50Mbps-100Mbps WAN/LAN Ports 2 SFP Port 1 CPU Multi-Core Management port 1 GE (Integated Out of Band) Security Included Voice Included PoE support (wattage) with PoE boost 260 W USB Ports (type A) 1 Default/max Flash 4 GB / 8 GB Performance 50 Mbps Upgradeable to 100 Mbps Power supply type External: AC, PoE Redundant power supply No Form factor 1 rack unit (RU), desktop Cisco Cloud Web Security Yes PoE support (wattage) without PoE boost 120 W
