Cisco C9300X-NM-4X10G Full Official Product Description
Important Model Explanation
The official base Cisco part number for this 4-port 1G/10G SFP+ uplink module isC9300-NM-4X, compatible with both standard Catalyst 9300 and high-performance Catalyst 9300X series switches.
C9300X-NM-4X10Gis the standardized descriptive SKU used for procurement, inventory and engineering documentation, which will be consistently used throughout this documentCisco.
1. Part Number & Naming Definition
Official Full Name
Cisco C9300X-NM-4X10G Catalyst 9300 / 9300X Series Hot-Swappable 4-Port Multi-Rate 1G/10G SFP+ Uplink Network Module
Naming Breakdown
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C9300X: Marks full interoperability with Catalyst 9300X high-speed stackable aggregation switches; also backward compatible with standard Catalyst 9300 non-X chassis
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NM: Network Module, rear-panel pluggable uplink expansion card installed in the dedicated rear uplink slot of Catalyst 9300/9300X switches
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4X10G: Four independent universal SFP+ multi-rate ports supporting auto-sensing 1 Gigabit Ethernet and 10 Gigabit Ethernet transceivers and twinax copper DAC cables
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Suffix=(C9300X-NM-4X10G=): Field-replaceable spare unit for hardware replacement
Core Positioning
The C9300X-NM-4X10G is a compact, cost-effective medium-density 10G uplink expansion module engineered for Cisco Catalyst 9300 and Catalyst 9300X enterprise stackable aggregation switches. It delivers an aggregate 40Gbps full-duplex uplink bandwidth for enterprise campus aggregation layers, small-scale data center leaf-spine interconnections, StackWise-480 / StackWise-1T high-speed stacking fabric links, and short-to-medium distance inter-building fiber trunks.
The hot-swappable OIR (Online Insertion and Removal) design allows on-site uplink capacity expansion or hardware maintenance without full switch power outage or network downtime. It supports all Cisco-certified SFP+ 10G optical transceivers, passive/active 10G twinax DAC copper cables, and legacy 1G SFP transceivers for phased network bandwidth migration and mixed-speed hybrid uplink deploymentsCisco.
2. Hardware & Software Compatibility
Supported Switch Platforms
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Fully compatible with all standard Catalyst 9300 non-X chassis: C9300-24P, C9300-24U, C9300-48P, C9300-48U, C9300-48UN
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Fully compatible with all Catalyst 9300X high-performance chassis: C9300X-24Y, C9300X-48TX, C9300X-48HX
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Not compatible with Catalyst 9300L / 9300LM fixed-uplink switches, Catalyst 9200 / Catalyst 9500 series switches
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Each Catalyst 9300 / 9300X switch supports one rear network module slot for a single uplink expansion card
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Backward mechanical and firmware compatible with legacy Catalyst 3850 network module slot standardsCisco.
Supported Cisco IOS XE Firmware
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Minimum supported release: Cisco IOS XE Fuji 16.9.x
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Fully validated for all modern IOS XE branches: 17.1.x, 17.3.x, 17.6.x, 17.9.x, 17.12.x and newer stable releases
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Full feature parity on Catalyst 9300X with UADP 2.0sec ASIC security and crypto acceleration capabilities
Transceiver & Cable Compatibility
All Cisco-certified SFP+ and SFP transceivers and cables are supported:
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10G optical SFP+ modules: SFP-10G-SR, SFP-10G-LR, SFP-10G-ER, SFP-10G-LRM
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10G passive / active twinax DAC copper cables (1m, 3m, 5m, 10m)
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1G SFP optical and copper transceivers for backward compatibility with legacy 1G uplink infrastructure
3. Physical & Electrical Specifications
Form Factor
Single-width rear pluggable hot-swappable expansion module dedicated for Catalyst 9300 / 9300X rear uplink slot
Power Consumption
Typical power draw: 7 Watts maximum under full four-port 10G full-duplex load
Environmental Operating Parameters
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Operating temperature: 0°C to 40°C (32°F to 104°F)
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Non-operating storage / transit temperature: -40°C to 70°C (-40°F to 158°F)
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Relative humidity: 5% to 95% non-condensing
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Maximum operating altitude: 3000 meters (10,000 ft) above sea level
Port Performance Metrics
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Each SFP+ port supports auto-sensing native 1Gbps / 10Gbps full-duplex line rate
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Aggregate total module bidirectional bandwidth: 40Gbps full-duplex
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No breakout functionality; each port operates as an independent TenGigabitEthernet / GigabitEthernet logical interface
4. Key Functional Feature Set
Hot-Swap OIR Operation
The module can be inserted or removed while the host Catalyst 9300 / 9300X switch remains fully powered and operational, eliminating service interruption during hardware replacement or uplink capacity expansion.
StackWise High-Speed Stacking Support
Enables deployment of high-bandwidth stacking interconnections between Catalyst 9300 and Catalyst 9300X stack members:
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StackWise-480 for standard Catalyst 9300 stacks (max 480Gbps stack fabric bandwidth)
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StackWise-1T for Catalyst 9300X mixed stacks (max 1Tbps stack fabric bandwidth)
Supports stacks of up to eight physical switches with low-latency cross-stack traffic forwarding.
Full Layer 2 & Layer 3 IOS XE Feature Compatibility
All module ports inherit the complete enterprise feature suite of the host Catalyst switch:
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Static and dynamic routing protocols: OSPF, EIGRP, BGP, RIP
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802.1Q VLAN trunking, native VLAN configuration, private VLANs
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Granular QoS traffic prioritization, traffic shaping, policing, queuing scheduling
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Access Control List (ACL) security filtering, inbound/outbound port ACLs
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LACP static/dynamic link aggregation, port channel redundancy
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Broadcast, multicast, unknown unicast storm control
Digital Optical Monitoring (DOM) & Streaming Telemetry
Built-in DOM diagnostic support for all SFP+ optical transceivers to continuously monitor real-time optical transmit/receive power, module internal temperature, supply voltage and laser bias current. Integrated IOS XE streaming telemetry enables remote real-time port performance statistics collection and hardware fault alerting for centralized Cisco DNA Center network management.
Enterprise High Availability Features
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Fully compatible with SSO (Stateful Switchover) and ISSU (In-Service Software Upgrade) for zero-downtime switch firmware updates
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Multiple independent SFP+ ports support redundant uplink design for automatic Layer 3/Layer 2 link failover protection against fiber cable or transceiver hardware faults
Advanced Enterprise Security Integration
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Cisco DNA Center zero-touch provisioning, automated switch configuration and policy orchestration
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Encrypted Traffic Analytics (ETA) for hidden malware and threat detection
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802.1X port-based network access control, MAC authentication bypass
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MACsec 10G link-layer end-to-end encryption for uplink traffic security
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TrustSec SGT security group tagging for enterprise-wide SD-Access network segmentation
5. Typical Enterprise Deployment Use Cases
Campus Aggregation Layer Uplinks
Deployed on Catalyst 9300 / 9300X aggregation switches to provide low-density 10G uplinks connecting small-to-medium access switch stacks to campus core switches or core routers.
StackWise Stack Fabric Interconnects
Utilize the 10G SFP+ ports to build high-bandwidth stacking trunks between stacked Catalyst 9300 / 9300X units, delivering low-latency cross-stack traffic forwarding for small multi-switch enterprise stacks.
Small Data Center Leaf-Spine Interconnections
Used for low-density leaf switch uplinks to data center spine switches, supporting short-reach multimode fiber for rack-to-rack leaf-spine connections and medium-distance single-mode fiber for cross-row data center interconnections.
Short-Distance Inter-Facility & Cross-Building Links
Deploy medium-range 10G SFP+ single-mode optical transceivers to establish cost-effective high-speed inter-building fiber backbone connections within small enterprise campus estates.
Phased Network Bandwidth Migration & Hybrid Uplink Architectures
Mixed deployment of existing 1G SFP and new 10G SFP+ transceivers on the same module ports to support gradual network bandwidth upgrades without full switch hardware refresh, enabling hybrid 1G/10G uplink topologies.
6. Regulatory & Compliance Certifications
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Electrical Safety Standards: UL 60950-1, CSA C22.2 No.60950-1, IEC/EN 60950-1
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EMC & EMI Standards: CE Mark, FCC Part 15 Class A, ICES-003 Class A, VCCI Class A, CISPR 22 Class A, CISPR 24, full EN 61000 series ESD, surge, radiated and conducted immunity compliance
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Environmental Directives: EU RoHS 2.0 hazardous substance restriction compliant, EU WEEE waste electronics recycling directive compliant
7. Standard Factory Packaging Contents
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C9300X-NM-4X10G four-port 1G/10G SFP+ uplink network module
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Integrated metal extraction lever and captive retention screws for secure rear-slot installation
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ESD anti-static protective packaging and ESD wrist strap for static-safe hardware handling
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Hardware installation quick-start guide covering hot-swap OIR procedures, SFP/SFP+ transceiver and DAC cable installation, and basic TenGigabitEthernet port configuration steps
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Full global regulatory compliance and certification documentation packet
Supplementary UNSPSC Classification Code
43222503 – Cisco C9300X-NM-4X10G hot-swappable 4-port 1G/10G SFP+ uplink expansion network module for Catalyst 9300 and Catalyst 9300X series enterprise stackable aggregation switches, supporting StackWise-480 / StackWise-1T high-speed stacking, DOM optical diagnostic monitoring, MACsec 10G link encryption, full IOS XE Layer2/Layer3 enterprise feature support, hot-swap OIR maintenance, designed for small enterprise campus aggregation, tiny data center leaf-spine uplink and short-distance inter-building fiber link deployments.
Standard Hardware Warranty Information
All factory-new C9300X-NM-4X10G network modules include a 1-year limited hardware warranty covering manufacturing defects and component failures under rated standard operating environmental conditions. Cisco Smart Net Total Care extended service contracts are available, providing 24×7 priority Cisco TAC technical support, advance genuine spare hardware replacement service, validated stable IOS XE firmware upgrade releases, and comprehensive switch configuration and network fault troubleshooting support.
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