Cisco ISR 4431 Router 500Mbps-1Gbps system throughput, 4 WAN/LAN ports, 4 SFP ports
- High-Performance Security router
- Form Factor: Rack-mountable
- 4431 ISR with 4 onboard GE
- 500Mbps to 1Gbps aggregate throughput data transfer
- 3 NIM slots, 1 ISC slot
- 8 GB flash memory default
- Maximum flash memory:32 GB
- 2 GB DRAM default (data plane)
- 4 GB DRAM default (control plane).
Cisco ISR 4431 Router Description
The Cisco ISR4431/K9 is a best-in-class router that is easy to manage while securing your business. The router has three Network Interface Module (NIM) slots and can give an aggregate throughput of 500 Mbps to 1 Gbps. Additionally, DDRM is supported on this router in both data and control planes, making router management a simple task. With all these features, you can manage your branch offices conveniently.
Easy to Share Files:
The router features OIR (all I/O modules) that allow you to replace faulty voice and data modules without altering system operation. With four WAN/LAN ports built-in, it is easy to share files and connect to the internet. It is easy to set up the router with VOIP support.


Status Indicator:
With the LED indicator provided by the Cisco ISR4431/K9, you can monitor the status of your network signals easily at any time.
Easy to Manage Performance:
You get the best experience with the ISR4431/K9 in terms of application security and quality. With easy-to-use management functions for administrators.

Cisco ISR 4431 Router Specifications
- Aggregate Throughput: 500Mbps to 1Gbps
- Total onboard WAN or LAN 10/100/1000 ports: 4
- RJ-45-based ports: 4
- SFP-based ports: 4
- NIM slots: 3
- OIR (all I/O modules): Yes
- Onboard ISC slot: 1
- 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 auto-ranging
- AC input frequency: 47 to 63 Hz
- AC input current range, AC power supply (maximum): 3 to 1.3A
- AC input surge current: 60 A peak and less than 5 Arms per half cycle
- Typical power (no modules) (watts): 65
- Maximum power with AC power supply (watts): 250 (no PoE)
- Maximum power with PoE power supply (platform only) (watts): 500 with PoE redundant
- Maximum endpoint PoE power available from PoE power supply (watts): 250 W with optional redundancy
More Information
Delivery Option | Same/Next Day Delivery |
---|---|
SKU | ISR4431/K9 |
Brands | Cisco |
Networking Type | Router |
Networking Speed | 1Gbps |
Connectivity | USB |
Ports | 4x 10/100/1000Mbps LAN |
Colour | Black |
Condition | New |
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Cisco ISR 4431 Router Description
The Cisco ISR4431/K9 is a best-in-class router that is easy to manage while securing your business. The router has three Network Interface Module (NIM) slots and can give an aggregate throughput of 500 Mbps to 1 Gbps. Additionally, DDRM is supported on this router in both data and control planes, making router management a simple task. With all these features, you can manage your branch offices conveniently.
Easy to Share Files:
The router features OIR (all I/O modules) that allow you to replace faulty voice and data modules without altering system operation. With four WAN/LAN ports built-in, it is easy to share files and connect to the internet. It is easy to set up the router with VOIP support.


Status Indicator:
With the LED indicator provided by the Cisco ISR4431/K9, you can monitor the status of your network signals easily at any time.
Easy to Manage Performance:
You get the best experience with the ISR4431/K9 in terms of application security and quality. With easy-to-use management functions for administrators.

Cisco ISR 4431 Router Specifications
- Aggregate Throughput: 500Mbps to 1Gbps
- Total onboard WAN or LAN 10/100/1000 ports: 4
- RJ-45-based ports: 4
- SFP-based ports: 4
- NIM slots: 3
- OIR (all I/O modules): Yes
- Onboard ISC slot: 1
- 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 auto-ranging
- AC input frequency: 47 to 63 Hz
- AC input current range, AC power supply (maximum): 3 to 1.3A
- AC input surge current: 60 A peak and less than 5 Arms per half cycle
- Typical power (no modules) (watts): 65
- Maximum power with AC power supply (watts): 250 (no PoE)
- Maximum power with PoE power supply (platform only) (watts): 500 with PoE redundant
- Maximum endpoint PoE power available from PoE power supply (watts): 250 W with optional redundancy
Delivery Option | Same/Next Day Delivery |
---|---|
SKU | ISR4431/K9 |
Brands | Cisco |
Networking Type | Router |
Networking Speed | 1Gbps |
Connectivity | USB |
Ports | 4x 10/100/1000Mbps LAN |
Colour | Black |
Condition | New |