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ISR4331/K9

The Cisco ISR4331/K9 is a high-performance, modular integrated services router designed for secure, scalable WAN connectivity, offering up to 100 Mbps performance (upgradeable to 300 Mbps), with built-in security, voice, and application services—ideal for branch offices seeking reliable used enterprise-grade hardware.

SKU: ISR4331/K9 Brand: Product ID: 126319

Description

The Cisco ISR4331/K9 is a high-performance Integrated Services Router designed for enterprise-level networking, offering a balance of power, scalability, and security. Built with a modular architecture, it supports a wide range of interface modules and network services, making it adaptable to evolving business needs. Its compact 1RU form factor ensures efficient space utilization while delivering up to 100 Mbps of throughput, with the capability to scale up to 300 Mbps using performance licenses. The router includes advanced security features such as VPN, firewall, and threat defense, ensuring secure data transmission across networks.

Equipped with three integrated Gigabit Ethernet ports, the ISR4331/K9 supports both WAN and LAN connectivity with redundancy options for increased reliability. The system is powered by a multi-core processor and 4 GB of default DRAM, expandable up to 16 GB for enhanced performance. Storage options include 4 GB of flash memory, expandable to 16 GB, providing ample space for software images and configurations. With support for Cisco’s IOS XE software, this router delivers enterprise-grade networking capabilities, including intelligent WAN (IWAN) and software-defined WAN (SD-WAN) functionality. Ideal for businesses looking for a cost-effective, reliable network solution, this model offers longevity and adaptability in a variety of IT environments.

Who We Are
 
ROC Telecom is a family-owned, Texas-based company specializing in helping businesses unlock value from their networking and telecom equipment. From routers and switches to optical gear and more, we provide a seamless solution for businesses looking to sell, recover assets responsibly, or buy quality-tested equipment at competitive prices.
 
What We Do
 
We make it easy to:
  • Sell Used Equipment: Get a quick, hassle-free quote and maximize the value of your old IT gear.
  • Buy Certified Networking Equipment: Access affordable, quality-tested equipment from top brands like Cisco, Juniper, Ciena, Fujitsu, Infinera and more.
Why Choose ROC Telecom?
  • Expertise You Can Trust: 15 years of experience in asset recovery and resale.
  • Sustainable IT Solutions: Reduce waste and support environmentally responsible practices.
  • Competitive Pricing: Fair, fast, and accurate valuations for all your equipment.
  • Free Shipping Logistics: Fast, secure, and hassle-free shipping or pickup options for buyers and sellers.
Our Process
  1. Submit a Request: You can use the “Buy” or “Sell” buttons above to get started — or fill out a form, call us at 585-406-1248, or email bailey@roctelecom.com. Whatever’s easiest for you, we’ll make it quick and hassle-free.
  2. Quick Evaluation: We’ll assess your equipment—whether you’re looking to sell it or find the right gear for your needs—and provide a fair offer.
  3. Simple Logistics: Fast, secure, and straightforward shipping or pickup solutions.
  4. Value Delivered: Recover funds from unused equipment or save on quality-tested networking and telecom gear.
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