Cisco 4221 Integrated Services Router ISR 4221/K9
Brand: Cisco · SKU: ISR4221-K9 · MPN: ISR4221/K9 · Category: Networking
The Cisco 4221 Integrated Services Router (ISR) is designed to deliver advanced services, robust VPN features, comprehensive security, and high-performance routing to small enterprise branch environments. It provides pay-as-you-grow performance, starting at 35Mbps aggregate throughput by default and expandable to 75Mbps with license upgrades. The unit features 2 onboard 10/100/1000 Ethernet ports (WAN/LAN), 2 Network Interface Module (NIM) slots, and 1 Integrated Services Card (ISC) slot for modular expansion. It comes standard with 4GB DRAM and 8GB Flash Memory. The router supports advanced routing protocols like OSPF, EIGRP, BGP, and RIP, and includes built-in firewall and VPN support (IPSec, SSL VPN, DMVPN).
Specifications
| ISC Slot | 1 (Onboard slot) |
|---|---|
| NIM Slots | 2 |
| Rack Height | 1 RU |
| Default DRAM | 4 GB |
| Power Supply | External AC only |
| SFP-based ports | 1 |
| Management Ports | 1x RJ45 Console/AUX, 1x USB Type A |
| Onboard GE Ports | 2 (1x RJ-45, 1x Combo SFP/RJ-45) |
| RJ-45-based ports | 2 |
| Aggregate Throughput | 35 Mbps to 75 Mbps (license dependent) |
| Default Flash Memory | 8 GB |
| Warranty | 365 days mentioned for a new unit from one seller |
| Weight | 3.22kg (7.1 lb) with AC power supply, no modules |
| Dimensions | 1.72 x 12.7 x 10 in (43.7 x 322.6 x 254 mm) (H x W x D) |
Key Features
The Cisco ISR4221/K9 is a fixed, enterprise-class router from the Cisco 4000 Series, ideal for branch office deployments requiring unified communications, voice/video services, and robust WAN optimization. It supports modular expansion via NIM and ISC slots and features integrated security like firewall and VPN capabilities.
Frequently Asked Questions
Is this product genuine OEM?
Yes, this Cisco 4221 Integrated Services Router ISR 4221/K9 (ISR4221-K9) is 100% genuine Cisco hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
What warranty is included?
This Cisco 4221 Integrated Services Router ISR 4221/K9 includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
How long does shipping take?
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Can I return this product?
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Is the Cisco 4221 Integrated Services Router ISR 4221/K9 compatible with my system?
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the ISR4221-K9.
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