Cisco ISR 4000 Router (ISR4451-X/K9)
The Cisco ISR4451-X/K9 is an enterprise-class integrated services router designed for high-performance branch and regional offices. Delivering 1 Gbps to 2 Gbps aggregate throughput, it supports rich services without compromising performance. With 4 onboard 10/100/1000 WAN/LAN ports, RJâ45 and SFP options, and multiple NIM and service-module slots, this Cisco router scales for growing hybrid WAN, security, and collaboration needs. Redundant AC/DC/PoE power options enhance resilience for business-critical deployments.
ISR4451-X/K9 specification
| Model | ISR4451-X/K9 |
|---|---|
| Brand | Cisco |
| Aggregate Throughput | 1 Gbps to 2 Gbps |
| Total Onboard WAN or LAN 10/100/1000 Ports | 4 |
| RJ-45-based Ports | 4 |
| SFP-based Ports | 4 |
| 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 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) | 2 GB |
| Maximum DDR3 ECC DRAM (Data Plane) | 2 GB |
| Default DDR3 ECC DRAM (Control/Services Plane) | 4 GB |
| Maximum DDR3 ECC DRAM (Control/Services Plane) | 16 GB |
| Default Flash Memory | 8 GB |
| Maximum Flash Memory | 32 GB |
| External USB 2.0 Slots (Type A) | 2 |