Cisco ISR4321 Router (ISR4351/K9)
The Cisco ISR4351/K9 is an enterprise-class integrated services router designed for secure, scalable WAN and LAN connectivity. Delivering 200Mbps to 400Mbps aggregate throughput, it suits growing branch networks across Asia, Europe, Africa, and North America that need reliable application performance and services integration. With three onboard 10/100/1000 WAN/LAN ports, dual service-module slots, three NIM slots, and PoE-capable internal power options, it gives distributors, SMB integrators, and end users a flexible platform for routing, voice, and security services in a compact 21.72kg chassis.
ISR4351/K9 specification
| Model | ISR4351/K9 |
|---|---|
| Brand | Cisco |
| Type | Cisco ISR4321/K9 with Security Bundle |
| Aggregate Throughput | 200Mbps to 400Mbps |
| Total Onboard WAN or LAN 10/100/1000 Ports | 3 |
| RJ-45-based Ports | 3 |
| SFP-based ports | 3 |
| Enhanced service-module slots | 2 |
| Doublewide service-module slots | 1 (assumes no singlewide SM-X modules installed) |
| NIM Slots | 3 |
| 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) | 16GB |
| 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 |