Cisco C9300-NM-4M Expansion Module, 4-Port 10GBASE-T Multi-Gigabit Ethernet for Catalyst 9300 Series Switches

Cisco C9300-NM-4M is a hot-swappable multigigabit Ethernet network module designed exclusively for the Cisco Catalyst 9300 Series switches. It provides four mGig RJ-45 ports supporting flexible speeds of 100Mbps, 1Gbps, 2.5Gbps, 5Gbps, and 10Gbps, delivering high-bandwidth uplink and downlink connectivity for modern enterprise networks. Ideal for high-density, data-intensive environments and Wi-Fi 6/6E deployments, this field-replaceable module integrates seamlessly into the 9300 chassis, drawing power directly from the switch without additional adapters. It offers backward compatibility with lower-speed devices, robust security, and QoS features, ensuring reliable, scalable, and cost-effective network expansion for branch offices, data centers, and campus environments.