ISR4221/K9 USED Cisco ISR 4221 Router
ISR4221/K9ISR4221/K9 USED Cisco ISR 4221 Router
ISR4221/K9 Overview
The Cisco ISR 4221 is part of the Cisco 4000 Series Integrated Services Routers (ISR 4000 Family), designed for small to medium branch offices that require secure, high-performance connectivity and integrated services.
It provides modular WAN and LAN connectivity, integrated security, voice, and application optimization features within a compact 1RU form factor.
The ISR 4221 delivers enterprise-class performance with support for up to 35–75 Mbps of aggregate throughput, depending on the license and configuration.
This router is ideal for secure WAN deployments, hybrid cloud access, and unified communications in distributed enterprise environments.
ISR4221/K9 Specification
| Parameter | Specification / Value |
|---|---|
| Model Number | Cisco ISR4221/K9 |
| Product Type | Integrated Services Router |
| Performance / Throughput | 35 Mbps (default), upgradable to 75 Mbps with Performance License |
| Architecture | Cisco Unified Computing System (UCS) based multi-core CPU architecture |
| Form Factor | 1 Rack Unit (1U) |
| LAN/WAN Ports | 2 × Integrated 10/100/1000 Mbps RJ-45 Ethernet ports (RJ-45/SFP combo) |
| Network Interface Module (NIM) Slots | 2 |
| Service Module (SM-X) Slots | 1 Internal (shared for future expansion) |
| Integrated Services Card (ISC) Slot | 1 |
| USB Ports | 1 × USB Type A (for storage), 1 × mini-USB console port |
| Console / Auxiliary Ports | 1 × RJ-45 console port, 1 × RJ-45 auxiliary port |
| Default DRAM | 4 GB |
| Maximum DRAM | 8 GB |
| Default Flash Memory | 4 GB |
| Maximum Flash Memory | 8 GB |
| Power Supply | Internal AC power supply (optional DC power version) |
| Maximum Power Consumption | Approximately 45 W (without PoE modules) |
| PoE Capability | Optional via PoE NIM modules |
| Rack Mountable | Yes (1U standard rack mount kit included) |
| Dimensions (H × W × D) | 44.45 × 369.57 × 294.64 mm (1.75 × 14.55 × 11.6 inches) |
| Weight | Approximately 4.5 kg (10 lbs) |
ISR4221/K9 Warranty
 | Low Price Guarantee |  | Quality Assurance |
 | Free CCIE Expert Technical Support |  | Commodity Refund Guarantee |
 | Diversified and Flexible Transportation Services |  | Standard Policy |
