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Cisco

Cisco ISR4431/K9 | Enterprise branch router | 4x1GbE, 3xNIM | SD-WAN ready, LTE-ready (modular) | License: IP Base | 8GB Flash, 4GB DRAM | IOS XE

Cisco ISR4431/K9 | Enterprise branch router | 4x1GbE, 3xNIM | SD-WAN ready, LTE-ready (modular) | License: IP Base | 8GB Flash, 4GB DRAM | IOS XE

SKU:ISR4431/K9

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Description

A scalable branch routing platform with integrated 1GbE interfaces and modular expansion for WAN, voice, or LTE. Ships with IP Base software, 8 GB flash, and 4 GB DRAM, ready for core routing and services on IOS XE. SD-WAN capable for future-ready deployments; voice and security features can be added via licenses and modules as required.

Features

- Enterprise-grade routing with IOS XE
- Upgradeable to UC, security, and SD-WAN
- Modular design with 3 NIM slots
- Investment protection for evolving branch needs
- Compact 1RU footprint

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Can this platform be upgraded for voice/UC?
A: Yes. Add UC licensing and a PVDM4 module plus the appropriate voice NIMs to enable voice features.

Q: Is SD-WAN included?
A: The platform supports SD-WAN; activation requires appropriate DNA subscriptions.

Q: Does it include LTE or Wi‑Fi?
A: No. LTE can be added via an LTE NIM; integrated Wi‑Fi is not included.

Q: What memory and storage are preinstalled?
A: It includes 4 GB DRAM and 8 GB flash.

Technical Specifications

- Fixed interfaces: 4 x 10/100/1000 Mbps Ethernet
- Expansion: 3 x NIM slots (WAN/voice/LTE modules)
- Software license: IP Base
- Memory: 4 GB DRAM
- Storage: 8 GB flash
- SD-WAN: Supported on IOS XE
- LTE: Supported via modular NIM (not included)
- Operating system: IOS XE
- Form factor: 1RU rack-mountable

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