Cisco ISR4321 Router (ISR4321-AX/K9)

The Cisco ISR4321-AX/K9 is a compact enterprise router designed for secure branch connectivity and intelligent WAN services. Delivering 50Mbps to 100Mbps system throughput, it integrates multi-core processing, advanced security, and voice capabilities to support converged services in distributed offices. With 2 dual-purpose WAN/LAN Gigabit Ethernet ports, 1 SFP port, and 2 NIM slots, the ISR4321 router scales with growing bandwidth and service requirements while keeping deployment and management simple for partners and end users.

ISR4321-AX/K9 specification

ModelISR4321-AX/K9
BrandCisco
Description50Mbps to 100Mbps system throughput, 2 WAN/LAN ports, 1 SFP port, multi-core CPU, 2 NIM, Security, Voice, WAAS, Intelligent WAN, OnePK, AVC
Aggregate Throughput50Mbps to 100Mbps
Total Onboard WAN or LAN 10/100/1000 Ports2
RJ-45-based Ports2
SFP-based ports1
Enhanced service-module slots0
Doublewide service-module slots0
NIM Slots2
OIR (all I/O modules)Yes
Onboard ISC slot1
Default Flash Memory4GB
Default DDR3 ECC DRAM (Combined Control/Services/Data Planes)4 GB
Maximum DDR3 ECC DRAM (Combined Control/Services/Data Planes)8 GB
Default DDR3 ECC DRAM (Data Plane)NA
Maximum DDR3 ECC DRAM (Data Plane)NA
Default DDR3 ECC DRAM (Control/Services Plane)NA
Maximum DDR3 ECC DRAM (Control/Services Plane)NA