Cisco ISR4331 Router (ISR4331-SEC/K9)
The Cisco ISR4331-SEC/K9 is a secure enterprise branch router designed for converged services in midsize networks. With configurable aggregate throughput from 100Mbps to 300Mbps, it supports growing WAN demands while maintaining strong performance for VPN, security, and application services. Three onboard 10/100/1000 WAN/LAN ports plus dual SFP interfaces offer flexible uplink and LAN designs for distributed offices across Asia, Europe, Africa, and North America. Modular NIM and enhanced service-module slots simplify scaling for integrators and resellers, while 4GB upgradable to 16GB DDR3 ECC DRAM and 4GB to 16GB flash provide headroom for advanced IOS XE features and future services deployment.
ISR4331-SEC/K9 specification
| Model | ISR4331-SEC/K9 |
|---|---|
| Brand | Cisco |
| Type | Cisco ISR4331/K9 with Security Bundle |
| Aggregate Throughput | 100Mbps to 300Mbps |
| Total Onboard WAN or LAN 10/100/1000 Ports | 3 |
| RJ-45-based Ports | 2 |
| SFP-based Ports | 2 |
| Enhanced Service-Module Slots | 1 |
| Doublewide Service-Module Slots | 0 |
| NIM Slots | 2 |
| 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) | NA |
| Maximum DDR3 ECC DRAM (Data Plane) | NA |
| Default DDR3 ECC DRAM (Control/Services Plane) | NA |
| Maximum DDR3 ECC DRAM (Control/Services Plane) | NA |
| Default Flash Memory | 4GB |
| Maximum Flash Memory | 16GB |
| External USB 2.0 Slots (Type A) | 1 |