Cisco ISR4331/K9 ISR 4000 Series Router Module

Cisco ISR4331/K9 ISR 4000 Series Router Module Image 1

Cisco ISR4331/K9 Integrated Services Router with three onboard GE ports.

The Cisco ISR4331/K9 is an Integrated Services Router from Cisco’s ISR 4000 series, designed to deliver WAN connectivity, security, and application services for enterprise branch offices. This mid-range router features three onboard Gigabit Ethernet ports and supports modular network interface cards for flexible WAN and LAN connectivity options.

The ISR 4331 is positioned for medium-sized branch deployments requiring a balance of performance and services integration. It supports Cisco IOS XE software and can run containerised applications, unified communications, and advanced security services concurrently through its multi-core architecture.

As part of Cisco’s current enterprise routing portfolio, the ISR4331/K9 remains widely deployed in branch office environments where organisations require a consolidated platform for routing, voice, and security functions without the footprint of multiple appliances.

Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

Worldwide supply. We export new and refurbished telecoms and networking equipment internationally. International buyers welcome, request a delivered quote in your currency. Supply subject to export checks.

From the same manufacturer

Compatible with the same platform

Frequently asked questions

Is the Cisco ISR4331/K9 refurbished or new?
Tech-Star supplies both new and refurbished Cisco ISR4331/K9. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the Cisco ISR4331/K9?
Refurbished Cisco ISR4331/K9 comes with a 90-day parts and labour warranty as standard. Extended warranty options are available on request.
How do I get a price for the Cisco ISR4331/K9?
Pricing reflects current stock and lead time, so we quote per enquiry. Submit the part number through the contact form for a quote, typically within one business hour.
Can the Cisco ISR4331/K9 be returned?
Returns are accepted within 14 days of delivery in line with our return policy. A restocking fee may apply for opened items.
How quickly can the Cisco ISR4331/K9 be delivered?
Lead time depends on current stock. UK-based items typically ship the next business day; sourced items vary. We confirm lead time at quote.

Key FeaturesThree onboard Gigabit Ethernet ports; Modular NIM slot expansion; Multi-core processor architecture; Cisco IOS XE operating system; Application hosting capability
ApplicationsEnterprise branch WAN connectivity; Unified communications deployment; Branch office security gateway; SD-WAN edge deployment
CompatibilityCisco NIM network interface modules; Cisco ISR 4000 series accessories; Cisco DNA Center; Cisco SD-WAN
Specifications3x onboard GE ports; 1RU rack-mountable; NIM expansion slots; ISR 4300 series chassis
PlatformISR 4000 Series
ManufacturerCisco

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