Cisco ISR 4331 3GE 2NIM 1SM 4G DRAM Router | Enterprise WAN — CON-PSBU-XRA96465

Keep branch operations online with a router platform designed for distributed enterprise WANs. The Cisco ISR 4331 combines 3 Gigabit Ethernet ports with 2 NIM slots and 1 SM slot, giving infrastructure teams room to adapt the edge for changing circuit, voice, or service requirements. With 4 GB DRAM and 4 GB flash, it is sized for routing tasks that demand stable local processing and persistent storage for configuration and services. This model is a strong fit when uptime, service segmentation, and controlled expansion matter more than commodity routing. The modular design helps reduce replacement cycles by allowing the platform to evolve with network requirements instead of forcing a full hardware refresh. For teams standardizing on Cisco WAN architecture, the ISR 4331 provides a familiar operational model with the flexibility needed for branch consolidation, secure connectivity, and long-term lifecycle planning. Ideal For Branch office WAN aggregation and routing Distributed enterprise edge connectivity Modular service expansion for voice or WAN interfaces Cisco-standard branch infrastructure refresh Why This Product 1 Modular expansion with 2 NIM slots and 1 SM slot 2 3 Gigabit Ethernet ports for branch connectivity 3 4 GB DRAM for local routing tasks 4 Cisco ISR platform for standardized WAN deployments