Cisco ISR4321 Router (ISR4321-SEC/K9)
The Cisco ISR4321-SEC/K9 is a branch-class integrated services router designed for secure enterprise connectivity. Delivering 50Mbps to 100Mbps aggregate throughput, it suits small and mid-sized offices that need reliable VPN, voice, and WAN services. With 2 onboard 10/100/1000 RJ-45 ports and 1 SFP-based port, plus AC or PoE external power options, this router simplifies deployment across diverse edge environments. Default 4GB DDR3 ECC DRAM and 4GB flash ensure stable performance and room for future services.
ISR4321-SEC/K9 specification
| Model | ISR4321-SEC/K9 |
|---|---|
| Brand | Cisco |
| Type | Cisco ISR4321/K9 with Security Bundle |
| Aggregate Throughput | 50Mbps to 100Mbps |
| Total Onboard WAN or LAN 10/100/1000 Ports | 2 |
| RJ-45-based Ports | 2 |
| SFP-based ports | 1 |
| Enhanced service-module slots | 0 |
| Doublewide service-module slots | 0 |
| NIM Slots | 2 |
| OIR (all I/O modules) | Yes |
| Onboard ISC slot | 1 |
| Default memory DDR3 ECC DRAM (combined control/services/data planes) | 4GB |
| 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 |