New and Refurbished 4221 ISR with Advanced Features

Cisco 4221 ISR is available with 3 onboard GE, 2 NIM slots, 1 ISC slot, 1 SM slot, and 4 GB flash memory default, along with 4 GB DRAM default and Warranty - Security IOS.

The Cisco 4000 Series Integrated Services Routers (ISR)

The Cisco 4000 Series ISR revolutionizes WAN communications in the enterprise branch. With new levels of built-in intelligent network capabilities and convergence, the routers specifically address the growing need for application-aware networking in distributed enterprise sites.

The Cisco 4000 Series Platforms

The series contains six platforms: the 4451, 4431, 4351, 4331, 4321 and 4221 ISRs (Figure 1).

Features and Benefits

Cisco 4000 Series ISRs provide you with Cisco Intelligent WAN (IWAN) software features and a converged branch infrastructure. Along with superior throughput, these capabilities form the building blocks of next-generation branch-office WAN solutions.

Cisco Intelligent WAN (IWAN)

Cisco IWAN is a set of intelligent software services that allow you to reliably and securely connect users, devices, and branch office locations across a diverse set of WAN transport links. IWAN-enabled routers like the 4000 Series dynamically route traffic across the best available paths.