Network Switch Module Cisco C9300-NM-4M 10 Gigabit Ethernet

The Cisco C9300-NM-4M 10 Gigabit Ethernet network switch module is designed for use with the Catalyst 9300 series to expand uplink capacity and enable higher-speed connections. It provides 10 Gigabit Ethernet connectivity and supports Ethernet LAN data rates up to 1000 Mbit/s where applicable, helping to deliver consistent throughput for aggregation and access-layer deployments in enterprise networks.

Advantages

This network module increases uplink bandwidth and provides flexibility for connecting to high-speed aggregation points, servers, and distribution switches. Its design is compatible with Catalyst 9300 chassis, allowing straightforward integration and centralized management along with existing Cisco switching features. The module supports proven Ethernet protocols and hardware-level performance characteristics that reduce bottlenecks and maintain predictable latency under typical enterprise loads.

Suitable for

• Server and storage uplinks requiring 10 Gigabit connections
• Aggregation of multiple access switches in campus networks
• High-throughput access layer in enterprise and branch environments
• Environments needing increased uplink capacity for virtualization or high-bandwidth applications

Key specifications

• Interface type: 10 Gigabit Ethernet module for Catalyst 9300 series
• Supported LAN rates: up to 1000 Mbit/s for Ethernet LAN connectivity where applicable
• Form factor: modular uplink card designed to install into Catalyst 9300 chassis
• Use case: uplink/aggregation connectivity for enterprise campus and branch networks

How to use

Install the module into an available uplink slot of a compatible Catalyst 9300 switch following the chassis installation procedure in the platform documentation. Once seated, connect 10 Gigabit Ethernet fiber or copper links to the module ports according to your network design. Configure link parameters, VLANs, trunking, and routing or switching policies using the switch management interface (CLI, web UI, or network management software) to integrate the module into the existing network fabric. Monitor link status and performance through standard management tools to verify proper operation.

Recommendations

Use appropriate transceivers and cabling rated for 10 Gigabit speeds and verify compatibility with Catalyst 9300 port optics. Plan link aggregation and redundancy to utilize the increased uplink capacity effectively, and apply firmware and configuration best practices from Cisco documentation to maintain security and stability.