Key Features
The Cisco 4300 Series ISRs, like the associated ISR4331/K9, are designed for the enterprise branch to handle modern WAN communications. They feature a converged branch infrastructure, supporting high-performance routing, security services (like encryption and VPNs), and WAN optimization. They utilize a distributed multicore architecture and support Cisco SD-WAN features. The base unit includes 4GB of default DRAM and Flash, with expansion capabilities via NIM and SM-X slots.