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| Brand Name : | CISCO | 
| Model Number : | CISCO3925/K9 | 
| Certification : | CE | 
ISR4451-X-SEC/K9 is the Cisco 4451 Integrated Services Router, with Security license. It supports 2 Enhanced service-module (SM-X) slots, delivers 1 Gbps to 2Gbps aggregate throughput. This router also supports two kinds of DDRM, data plane and control/services plane, which make administrator easy to manage the router.
Figure 1 shows the appearance of Cisco ISR4451-X-SEC/K9.
Table 1 shows the Quick Specs.
| Product Code | ISR4451-X-SEC/K9 | 
| Bundle | w/SEC license | 
| Aggregate Throughput | 1 Gbps to 2Gbps | 
| Total onboard WAN or LAN 10/100/1000 ports | 4 | 
| RJ-45-based ports | 4 | 
| SFP-based ports | 4 | 
| Enhanced service-module (SM-X) slot | 2 | 
| NIM (Network Interface Modules) slots | 3 | 
| Onboard ISC slot | 1 | 
| DDRM (data plane) | 2 GB (default) / 2 GB (maximum) | 
| DDRM (control/services plane) | 4 GB (default) / 16 GB (maximum) | 
| Flash Memory | 8 GB (default) / 32 GB (maximum) | 
| Power-supply options | Internal: AC, DC (roadmap) and PoE | 
| Rack height | 2 RU | 
| Dimensions (H x W x D) | 88.9 x 438.15 x 469.9 mm | 


                                 
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