Product Overview
The Cisco C9300-NM-4G is a 4-port 1G SFP network module designed for use with Cisco Catalyst 9300 Series switches. It enables high-speed fiber or copper uplink expansion in enterprise access networks, offering flexibility, scalability, and enhanced performance for stacking or uplink redundancy.
Product Description
The Cisco Catalyst C9300-NM-4G is a modular uplink network interface card that adds four 1G SFP slots to Catalyst 9300 Series switches. This hot-swappable module supports a wide range of Cisco SFP transceivers, including fiber (GLC-SX-M MD, GLC-LH-SMD) and copper (GLC-T), allowing deployment flexibility across short or long distances. It provides Gigabit Ethernet uplink capacity for stacking, aggregation, or redundant connections, making it ideal for small to medium enterprises and branch office networks that do not require 10G uplinks. The module installs directly into the uplink slot of a compatible Catalyst 9300 switch.
Key Features
4x 1G SFP uplink ports
Supports hot-swappable installation
Compatible with Cisco Catalyst 9300 Series only
Works with SFP modules like GLC-SX-M MD, GLC-LH-SMD, GLC-T
Enables flexible uplink deployment: fiber or copper
Supports link aggregation, redundant uplinks, and extended reach
Plug-and-play with no need for reboot
Compact, reliable, and energy-efficient design
Technical Specifications
| Specification | Details |
| Product Model | C9300-NM-4G |
| Uplink Ports | 4x 1G SFP |
| Module Type | Network Module (Uplink) |
| Hot Swappable | Yes |
| SFP Compatibility | GLC-T, GLC-SX-M MD, GLC-LH-SMD, etc. |
| Airflow Design | Matches switch airflow |
| PoE Support | No (Data uplinks only) |
| Power Supply Dependency | Draws power from host switch |
| Compatibility | Catalyst 9300 Series only |
| Uplink Speed | 1 Gigabit per port |
Compatible Cisco Switches
| Cisco Switch Model | Compatible | Notes |
| C9300-24T-E | Yes | Adds 4x 1G uplinks via SFP |
| C9300-48P-A | Yes | Enables fiber uplinks for PoE switch |
| C9300-24S-E | Yes | Supports SFP fiber aggregation |
| C9300-24UX-E | Yes | Optional for lower-cost uplinks |
| C9300L Series | No | Uses fixed uplink modules only |
Comparison with Other Catalyst 9300 Modules
| Module | Ports | Speed per Port | Transceiver Type | Intended Use |
| C9300-NM-4G | 4 | 1G | SFP | Standard Gigabit uplinks |
| C9300-NM-4X | 4 | 10G | SFP+ | High-performance 10G uplinks |
| C9300-NM-2Y | 2 | 25G | SFP28 | Ultra-high-speed 25G uplinks |
| C9300-NM-2Q | 2 | 40G | QSFP+ | Aggregation with 40G uplinks |
