C9300-NM-4G 4-Port 1G Network Module

Brand: Cisco | Category: Accessories & Components

SKU: C9300-NM-4G | Part #: C9300-NM-4G | MPN: C9300-NM-4G

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The C9300-NM-4G is a four-port 1 Gigabit network expansion module purpose-built for the Cisco Catalyst 9300 Series switching platform. If you operate Catalyst 9300 switches and need to add or replace network connectivity without swapping the entire chassis, this module slots directly into the dedicated network module bay on supported C9300 models. Compatibility with your existing hardware is the first question any network engineer asks when considering an accessory, and this Cisco component answers that decisively—it integrates seamlessly with the Catalyst 9300's hardware forwarding engine and QoS pipeline, meaning you get line-rate performance and feature parity with the base system.

What makes the C9300-NM-4G particularly valuable in data centre and enterprise environments is its flexibility around media type. The module uses Small Form-Factor Pluggable (SFP) transceiver slots, which means you are not locked into a single copper or fiber choice. Network engineers can populate the four ports with 1000BASE-T SFP transceivers for copper runs, or deploy 1000BASE-SX short-reach fiber, 1000BASE-LX long-reach fiber, or 1000BASE-LH extended long-reach options depending on your cabling infrastructure. This modularity is what separates a fixed-port switch from a truly flexible platform. Since transceivers are sold separately, you buy exactly what your topology requires—no waste, no forcing square pegs into round holes. For teams managing multi-building data centre campuses or hybrid on-premises and remote office layouts, that matters operationally.

Installation is straightforward because Cisco designed the C9300-NM-4G as a field-replaceable unit (FRU). Your team can remove and insert it without powering down the entire switch stack, which is critical in environments where uptime directly affects revenue or service delivery. If you are running a StackWise-480 configuration across multiple Catalyst 9300 switches, the module plays well with that topology—it integrates into the stack's unified control plane and distributed forwarding model. Management happens through the same tools you already use: Cisco IOS XE CLI for direct command-line work, NETCONF/YANG APIs for automation and orchestration, or Cisco DNA Center for broader network intent-based operations. A network operations centre monitoring dozens of switches does not want a module that requires its own management silo.

From a purchasing perspective, the C9300-NM-4G appeals to infrastructure teams at different sizes and maturity levels. A systems administrator responsible for a small corporate data centre might use it to add ports to an existing switch rather than buying new hardware. A network architect designing an AI lab or machine learning cluster might specify it to add controlled expansion capacity without chassis duplication. In larger operations, storage and compute teams often work backwards from their switching architecture, and having modular options like this one gives them negotiating room and future-proofs their choices. The part number C9300-NM-4G appears on bills of materials, architecture diagrams, and procurement requisitions across GCC enterprises because it solves a real problem: planned growth or remediation without wholesale replacement.

Omnixon Global stocks the C9300-NM-4G and other Cisco modular networking components for immediate availability across the UAE and GCC region, with logistics to Asia and Europe. If you are building or expanding a Catalyst 9300 deployment and need certified hardware with proven support, we can help you evaluate options and supply with full technical documentation. Contact us with your specifications, quantities, and timeline—we handle RFQs quickly and work with enterprises, data centre operators, and systems integrators across multiple verticals.

Interface & Connectivity Specifications

• Four SFP ports supporting 1 Gigabit Ethernet with flexible transceiver options (1000BASE-T copper, 1000BASE-SX, 1000BASE-LX/LH fiber)
• Hot-swappable field-replaceable unit design for live insertion and removal without system downtime
• Integrated with Catalyst 9300 hardware forwarding engine and Quality of Service pipeline for line-rate performance
• Compatible with StackWise-480 stacking on supported C9300 platforms for distributed multi-switch deployments
• Managed via Cisco IOS XE CLI, NETCONF/YANG automation, and Cisco DNA Center for unified network intent
• Dedicated network module slot on Catalyst 9300 chassis—no adapter boards or compatibility workarounds required
• Supports standard industry-standard 1G SFP transceivers from Cisco and qualified third-party vendors