Save up to 80% over list price on the Cisco ISR4221-SEC/K9 — a powerful integrated services router built for enterprise branch offices that need reliable WAN connectivity with advanced security. Backed by Reef Telecom's industry-leading 10-year warranty and free shipping on orders over $300.

Key Specifications

• Part Number: ISR4221-SEC/K9
• Series: Cisco ISR 4000
• Aggregate Throughput: 35 Mbps – 75 Mbps
• WAN/LAN Ports: 2x 10/100/1000Base-T Gigabit Ethernet (RJ-45)
• SFP Port: 1x Gigabit SFP
• NIM Slots: 2 (Network Interface Module)
• ISC Slot: 1
• SM Slot: 1
• DRAM: 4 GB DDR3 ECC
• Flash Memory: 4 GB (expandable to 8 GB)
• Security License: SEC Bundle included (Firewall, VPN, Intrusion Prevention)
• Form Factor: 1RU rack-mountable
• Power: External AC (100–240V), 24W typical
• Dimensions: 1.72 x 12.7 x 10 in | Weight: 7.1 lb

Security & Performance

The ISR4221-SEC/K9 ships with Cisco's Security Bundle license, delivering enterprise-grade firewall, zone-based policy controls, VPN (IPsec/DMVPN), and Snort-based intrusion prevention out of the box. Combined with Cisco Intelligent WAN (IWAN) capabilities, this router dynamically routes traffic over the optimal link based on real-time application and network conditions — ensuring consistent performance for mission-critical workloads.

Ideal Use Cases

• Enterprise branch office WAN connectivity
• Secure VPN tunnels between remote sites and data centers
• SD-WAN and IWAN deployments
• Small-to-medium business network infrastructure
• MPLS and Internet dual-WAN failover

Every refurbished Cisco ISR4221-SEC/K9 from Reef Telecom is professionally inspected, tested, and restored to full operational standards. Order with confidence — backed by our 10-year warranty and expert support.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.