Cisco C9300-NM-2Y | 2-Port 25G SFP28 Network Module for Catalyst 9300

Q: Is the C9300-NM-2Y compatible with all Catalyst 9300 models?
A: The C9300-NM-2Y is compatible with Cisco Catalyst 9300 Series modular uplink models (C9300 and C9300X SKUs). It is not compatible with fixed uplink models (C9300L SKUs) or Catalyst 3850 switches. Verify your switch model supports network modules before purchase.

Q: Can I use 10G or 1G SFP optics in the SFP28 ports?
A: Yes, the C9300-NM-2Y supports multi-rate operation. The SFP28 ports are backward compatible with SFP+ transceivers for 10G connectivity and standard SFP modules for 1G, providing deployment flexibility across different network speeds.

Q: Does this module require a separate license to operate?
A: The network module itself does not require a separate license. However, the underlying Catalyst 9300 switch requires appropriate Cisco DNA or Network Advantage/Essentials licensing for advanced features. The module operates as part of the switch's existing license tier.

Q: Can I install or replace this module without powering down the switch?
A: Yes, the C9300-NM-2Y is fully hot-swappable. You can install or remove the module without shutting down the Catalyst 9300 switch, allowing zero-downtime upgrades and replacements in production environments.

Q: What is the typical use case for 25G uplinks on access switches?
A: The C9300-NM-2Y is ideal for high-bandwidth scenarios including core-to-distribution uplinks in large campus networks, data center edge connectivity, aggregation of multiple 10G access switches, and high-density 802.11ax (Wi-Fi 6/6E) wireless backhaul supporting hundreds of concurrent users.