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ISR4451-X/K9 Routers Overview
The Cisco ISR4451-X/K9 is the Cisco 4451 Integrated Services Router that supports 2 Enhanced service-module (SM-X) slots and delivers 1 Gbps to 2 Gbps aggregate throughput. This router is designed to provide robust performance and flexibility for enterprise branch applications. It features 4 onboard WAN or LAN 10/100/1000 ports, including 4 RJ-45-based ports and 4 SFP-based ports for varied network connectivity. The ISR4451-X supports both data plane and control/services plane DDRM, making it easy for administrators to manage and optimize performance. The router includes 3 NIM (Network Interface Modules) slots and 1 onboard ISC slot, offering expansion options for additional interfaces. With 2 GB DDRM for data plane (expandable to 2 GB) and 4 GB DDRM for control/services plane (expandable to 16 GB), the ISR4451-X ensures efficient handling of both data and control services. It also offers 8 GB flash memory (expandable to 32 GB) for ample storage capacity. The router is equipped with internal AC, DC (roadmap), and PoE power supply options, making it highly versatile. Rack-mountable with a 2 RU form factor, the ISR4451-X is perfect for Cisco Enterprise Branch Routers that require high-performance routing and secure, flexible configurations. Shop Cisco Routers like the ISR4451-X/K9 for enhanced routing capabilities and scalability.
Recommended modules and accessories
Items |
Models |
Descriptions |
Console and Auxillary Cables |
CAB-AUX-RJ45 | Cisco CAB-AUX-RJ45 Auxiliary Cable 8ft with RJ45 and DB25M |
| CAB-ETH-S-RJ45 | Cisco Router Cable CAB-ETH-S-RJ45 | |
| CAB-CONSOLE-RJ45 | Cisco CAB-CONSOLE-RJ45 Console Cable 6ft with RJ45 and DB9F | |
| CAB-CONSOLE-USB | Cisco CAB-CONSOLE-USB Console Cable 6 ft with USB Type A and mini-B | |
Licenses |
L-SL-44-APP-K9 | Cisco ISR 4431/4451 AppX license L-SL-44-APP-K9= with WAAS/vWAAS 1300/2500 conns RTU |
Network Interface Modules |
NIM-1MFT-T1/E1 | Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module |
| NIM-2CE1T1-PRI | Cisco Multiflex Trunk Voice and WAN network interface module | |
| NIM-4E/M | Analog voice network interface card (ear and mouth) | |
| NIM-2FXS | Cisco Analog voice network interface card NIM-2FXS | |
| NIM-2FXS/4FXO | Cisco Analog voice network interface card NIM-2FXS/4FXO | |
| NIM-8MFT-T1/E1 | Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module | |
SFPs for On-Board GE Ports |
GLC-SX-MMD | Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM |
| GLC-LH-SMD | Cisco GLC-LH-SMD 1000BASE-LX/LH SFP transceiver module, MMF/SMF, 1310nm, DOM | |
| GLC-ZX-SMD | Cisco GLC-ZX-SMD 1000BASE-ZX SFP transceiver module, SMF, 1550nm, DOM |
Compare to Similar Items
Technical Specifications |
ISR4461/K9 |
ISR4451-X/K9 |
ISR4431/K9 |
ISR4351/K9 |
ISR4331/K9 |
ISR4321/K9 |
ISR4221/K9 |
| Aggregate Throughput | 1.5Gbps | 1 Gbps to2 Gbps | 500 Mbps to1 Gbps | 200 Mbps to400 Mbps | 100 Mbps to300 Mbps | 50 Mbps to100 Mbps | 35 Mbps to 75 Mbps |
|
Total onboard WAN or LAN 10/100/1000 ports |
4 | 4 | 4 | 3 | 3 | 2 | 2 |
| RJ-45-based ports | 4 | 4 | 4 | 3 | 2 | 2 | 2 |
| SFP-based ports | 4 | 4 | 4 | 3 | 2 | 1 | 1 |
| Enhanced service-module slots | 3 | 2 | 0 | 2 | 1 | 0 | 0 |
| Doublewide service-module slots | 2 |
1 (assumes no singlewide SM-X modules installed) |
0 |
1 (assumes no singlewide SM-X modules installed) |
0 | 0 | 0 |
| NIM slots | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
| OIR (all I/O modules) | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Onboard ISC slot | 1 | 1 | 1 | 1 | 1 | 1 | No |
Specifications
Cisco ISR4451-X/K9 Specifications |
|
| 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 slots | 2 |
| Double wide 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 double-data-rate 3 (DDR3) error-correction-code (ECC) DRAM (Combined control/services/data planes) |
NA |
|
Maximum memory DDR3 ECC DRAM (Combined control/services/data planes) |
NA |
|
Default memory DDR3 ECC DRAM (data plane) |
2 GB |
|
Maximum memory DDR3 ECC DRAM (data plane) |
2 GB |
|
Default memory DDR3 ECC DRAM (control/services plane) |
4 GB |
|
Maximum memory 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 |
|
USB console port -type B mini (up to 115.2 kbps) |
1 |
|
Serial console port - RJ45 (up to 115.2 kbps) |
1 |
|
Serial auxiliary port - RJ45 (up to 115.2 kbps) |
1 |
| Power-supply options | Internal: AC, DC and PoE |
| Redundant power supply | Internal: AC, DC and PoE |
| AC input voltage | 100 to 240 VAC autoranging |
| AC input frequency | 47 to 63 Hz |
|
AC input current range, AC power supply (maximum) |
7.1 to 3.0A |
| AC input surge current | <50 A |
| Typical power (no modules) (watts) | 158 |
|
Maximum power with AC power supply (watts) |
450 (no PoE) |
|
Maximum power with PoE power supply (platform only) (watts) |
1000 with PoE redundant1450 with PoE boost no redundancy |
|
Maximum endpoint PoE power available from PoE power supply (watts) |
500 W with optional redundancy |
|
Maximum endpoint PoE power capacity with PoE boost (watts) |
950 W no redundancy |
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