Product information
The Cisco 4221 Integrated Services Router (ISR4221/K9) is engineered to provide secure, reliable WAN connectivity and application services to small-to-medium enterprise branch offices. Running Cisco IOS XE Software, the ISR 4221 converges routing, security, and digital network architecture capabilities into a compact 1RU desktop/rack-mountable form factor.
Key features include:
- Default aggregate throughput of 35 Mbps, upgradable up to 75 Mbps with an optional performance license.
- Dual Gigabit Ethernet WAN ports (1x RJ-45 10/100/1000 and 1x combo RJ-45/SFP 10/100/1000 port).
- Two Network Interface Module (NIM) slots for flexible module expansion (WAN, voice, or serial).
- 4 GB default control/data plane DRAM and 4 GB default Flash memory.
- Built-in support for Cisco SD-WAN, advanced routing protocols, firewall, and VPN security services.