© 2026. Powered by C2 Computer. All Rights Reserved.
(NEW) Cisco Router ISR 4000 Series - ISR 4221X/K9
Couldn't load pickup availability

Overview
The Cisco ISR 4221/K9 is part of the Cisco 4000 Series Integrated Services Routers, designed to deliver secure and scalable network services for small branch offices. This router provides a balance between performance and cost, making it ideal for smaller environments that still require reliable, secure, and feature-rich network infrastructure. With integrated WAN and LAN connectivity, SD-WAN support, and a variety of security features, the ISR 4221/K9 is a versatile solution for evolving network needs.
Specs
Model:
- Cisco ISR 4221/K9 Integrated Services Router
WAN Connectivity:
- 2 Integrated 10/100/1000 Ethernet ports (RJ-45)
- 2 Network Interface Module (NIM) slots for WAN/LAN expansion
Performance:
- Base Throughput: Up to 35 Mbps
- Max Throughput (with performance license): Up to 75 Mbps
Memory:
- Default DRAM: 4 GB (upgradable to 8 GB)
- Flash Memory: 8 GB (upgradable to 16 GB)
Security:
- Integrated IPsec VPN, DMVPN, FlexVPN
- Cisco IOS Firewall
- URL Filtering and Threat Defense
- Optional Unified Threat Defense (UTD) module for enhanced security features
Routing Features:
- Supports IPv4/IPv6, OSPF, BGP, EIGRP, RIP
- Cisco IOS XE operating system for programmability, automation, and SD-WAN support
- SD-WAN capable for optimized application-aware routing and traffic management
Power:
- Internal power supply (non-redundant)
- Power over Ethernet (PoE) support with optional modules
Interfaces:
- 2 Integrated Ethernet ports for LAN/WAN connectivity
- 2 NIM slots for modular expansion (e.g., WAN, wireless, etc.)
Management:
- Managed via CLI, Cisco DNA Center, and web-based tools
- Full support for Cisco DNA and SD-WAN orchestration
The Custom Tab allows you to display personalized content on your product page with full flexibility.
You can easily manage what appears inside this tab by choosing one of the following options:
- Manual Input: Enter content directly in the theme settings.
- Metafield Source: Connect the tab to a metafield to display dynamic, product-specific information.
- Page Content: Pull existing content from a Shopify page to reuse or centralize updates.
This feature is ideal for showing size guides, care instructions, brand stories, shipping details, or any custom information you want your customers to see — all without touching any code.