C9300-NM-2Y - Cisco 9300 2x 25GE Network Module

Cisco C9300-NM-2Y — Catalyst 9300 2×25GbE Network Module

What it is

C9300-NM-2Y is an expansion network module for Cisco Catalyst 9300 Series switches.
It adds two 25 Gigabit Ethernet ports (SFP28) to a compatible Catalyst 9300 chassis, providing high-speed uplinks or server connectivity for modern enterprise and data center edge deployments.

Why buyers pick C9300-NM-2Y (plain English)

High-speed 25GbE ports
Two 25GbE SFP28 ports offer more bandwidth than traditional 10GbE uplinks, making them ideal for high-throughput links to aggregation or distribution layers.

Modular flexibility
Installs in the Catalyst 9300’s network module slot so you can expand port capacity without replacing the entire switch.

Optimized for evolving networks
Supports bandwidth needs for virtualized servers, wireless backhaul (Wi-Fi 6/6E), and containerized workloads without overprovisioning.

Integrated with IOS-XE
Managed via the same Cisco IOS-XE feature set as the base switch, for consistent configuration, monitoring, and policy enforcement.

Future-ready uplinks
Helps future-proof access switches by enabling 25GbE connectivity as core and aggregation speeds increase.

60-second spec box (C9300-NM-2Y)

Module type
Network module for Cisco Catalyst 9300

Ports
2 × 25GbE SFP28

Connector type
SFP28 cages

Speed support
25GbE

Form factor
Catalyst 9300 expansion module

Managed by
Cisco IOS-XE

Use case
High-speed uplinks, server connections, aggregation links.

Where it fits (and when to choose something else)

Perfect for:

• Catalyst 9300 switches needing 25GbE uplinks

• Aggregation or distribution links in campus networks

• High-bandwidth server connectivity

• Wi-Fi 6/6E AP backhaul and virtualization traffic

Choose something else if:

• You need 10GbE only → 9300-NM-8X or 4M modules

• You need 40GbE → 9300-NM-2Q module

• You want fixed high-speed uplinks → switches with built-in 25G/40G ports

TL;DR

C9300-NM-2Y is Cisco’s Catalyst 9300 expansion module with two 25GbE SFP28 ports —
a high-speed uplink option that boosts bandwidth and flexibility for enterprise access and aggregation layers.