C9300X-NM-2C – 2x100G/40G QSFP28 Module – Catalyst 9300X
Established Global IT Distributor
With over a decade of industry experience, we are a certified Cisco Partner delivering genuine enterprise networking hardware and trusted services to system integrators, ISPs, and enterprises worldwide.
C9300X-NM-2C Description
C9300X-NM-2C is a Cisco Catalyst 9300X field-replaceable network module for compact 40G/100G QSFP uplink expansion. It provides two 40G/100G slots, dual-rate 100G and 40G support, QSFP+ connectors, Catalyst 9300X Series platform scope, no support on standard Catalyst 9300 models, Cisco IOS XE Bengaluru 17.5.1 introductory release, and spare SKU C9300X-NM-2C=. HXN switch variants have documented port-use behavior, with breakout supported only on port 1 on Cisco Catalyst C9300X-48HXN. The module adds two high-speed QSFP uplinks to Catalyst 9300X designs that do not need a larger uplink module.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9300X-NM-2C |
|
Product type |
Network module |
|
Cisco ordering description |
Catalyst 9300 2 x 100G/40G dual rate QSFP28 network module |
|
Port Count |
2 |
|
Supported Port Speeds |
100G and 40G |
|
Module Slots |
Two 40 GE/100 GE slots |
|
Connector Type |
QSFP+ connector in each slot |
|
Supported Platform |
Cisco Catalyst 9300X Series switches |
|
Standard Catalyst 9300 Support |
Not supported on standard Catalyst 9300 models |
|
Introductory Release |
Cisco IOS XE Bengaluru 17.5.1 |
|
HXN Usable Ports |
Ports 1 and 2 usable on Cisco IOS XE 17.8.1 and later |
|
HXN Breakout Note |
Breakout supported only on port 1 on Cisco Catalyst C9300X-48HXN |
|
Spare SKU |
C9300X-NM-2C= |
Application Scenarios
Use C9300X-NM-2C when a Catalyst 9300X switch needs two high-speed uplinks toward aggregation, distribution, or core switches. It helps buyers keep the installed Catalyst 9300X access platform while adding 40G or 100G uplink capacity.
Choose this module when the design needs 100G uplink speed but does not need four QSFP28 ports. It is commonly compared with C9300X-NM-4C when the buyer is balancing uplink count, switch model support, and optics cost.
C9300X-NM-2C can support 100G operation and breakout-based designs in supported configurations. For Catalyst 9300X-HXN deployments, confirm the port-specific breakout limitation before quoting optics or breakout cables.
Product Comparison
|
Parameter |
C9300X-NM-2C | |||
|---|---|---|---|---|
|
Product type |
QSFP28 network module |
QSFP28 network module |
SFP28 network module |
QSFP+ network module |
|
Port Count |
2 |
4 |
8 |
2 |
|
Supported Port Speeds |
100G/40G |
100G/40G |
25G/10G/1G |
40G |
|
Connector or Port Type |
QSFP+ connector / QSFP28 ordering description |
QSFP+ connector / QSFP28 ordering description |
SFP28 |
QSFP+ |
|
Supported Platform |
Catalyst 9300X Series switches |
C9300X-24Y, C9300X-48HX, C9300X-48TX |
Catalyst 9300X Series switches |
Catalyst 9300 Series switches |
|
Introductory Release |
Cisco IOS XE 17.5.1 |
Cisco IOS XE 17.6.1 |
Cisco IOS XE 17.5.1 |
Cisco IOS XE Everest 16.5.1a |
|
Spare SKU |
C9300X-NM-2C= |
C9300X-NM-4C= |
C9300X-NM-8Y= |
C9300-NM-2Q= |
|
Primary Media Planning |
40G/100G QSFP optics or supported breakout |
40G/100G QSFP optics |
1G/10G/25G SFP optics |
40G QSFP optics |
- Choose C9300X-NM-2C when the Catalyst 9300X switch needs two 40G or 100G uplink slots.
- Choose C9300X-NM-4C only when four 40G/100G ports are required and the target switch model is officially supported.
- Choose C9300X-NM-8Y when the uplink design is based on 1G, 10G, or 25G SFP/SFP+/SFP28 optics instead of QSFP-class links.
- Choose C9300-NM-2Q for standard Catalyst 9300 modular-uplink switches that need 40G QSFP uplinks, not for Catalyst 9300X.
Selection Guide
1. Choose C9300X-NM-2C for two 40G/100G Catalyst 9300X uplinks
Select C9300X-NM-2C when the switch is a Catalyst 9300X model and the uplink design needs two QSFP-class 40G or 100G ports.
2. Choose C9300X-NM-4C when the design needs four 100G uplinks
If two high-speed uplinks are not enough, compare C9300X-NM-4C, but verify the target switch model because Cisco lists narrower platform support for the 4-port module.
3. Do not use it for standard Catalyst 9300 switches
C9300X network modules are supported only on Catalyst 9300X switches. For standard Catalyst 9300 models, compare C9300-NM modules such as C9300-NM-2Q, C9300-NM-8X, or C9300-NM-2Y according to the required uplink speed.
4. Confirm optics, breakout, and software release before ordering
Before purchase, verify Cisco-supported QSFP optics or breakout cables, the target Cisco IOS XE release, and any Catalyst 9300X-HXN port behavior that affects usable ports or breakout support.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Switch Model |
Exact Catalyst 9300X model |
Confirms the module is being ordered for the supported platform family |
|
Standard C9300 vs C9300X |
Whether the switch is Catalyst 9300X or standard Catalyst 9300 |
C9300X-NM modules are not for standard Catalyst 9300 switches |
|
Uplink Speed |
40G or 100G requirement |
Confirms that a QSFP-class module is the correct choice |
|
Port Count |
Two QSFP-class uplinks |
Determines whether C9300X-NM-2C is enough or C9300X-NM-4C should be compared |
|
IOS XE Release |
Cisco IOS XE support for the target switch and module |
Prevents ordering a module for an unsupported software baseline |
|
HXN Deployment |
Whether the switch is a Catalyst 9300X-HXN model |
HXN models have specific usable-port and breakout behavior |
|
Optics or Cables |
Cisco-supported QSFP optics, DACs, AOCs, or breakout cables |
Avoids ordering the module without compatible uplink media |
|
Spare Requirement |
C9300X-NM-2C or C9300X-NM-2C= |
Prevents confusion between base module and spare-part ordering |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9300X-NM-2C | Product type | Network module |
| Cisco ordering description | Catalyst 9300 2 x 100G/40G dual rate QSFP28 network module | Port Count | 2 |
| Supported Port Speeds | 100G and 40G | Module Slots | Two 40 GE/100 GE slots |
| Connector Type | QSFP+ connector in each slot | Supported Platform | Cisco Catalyst 9300X Series switches |
| Introductory Release | Cisco IOS XE Bengaluru 17.5.1 | HXN Usable Ports | Ports 1 and 2 usable on Cisco IOS XE 17.8.1 and later |
| HXN Breakout Support | Breakout supported only on port 1 on Cisco Catalyst C9300X-48HXN | Spare Part Number | C9300X-NM-2C= |
| Installation Type | Field-replaceable network module |
Get More Information
Need pricing, stock, or shipping details for the C9300X-NM-2C ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email sales@layer23-switch.com for a fast quotation.
Quality Certifications
Customer Reviews
Questions & Answers
-
What role does C9300X-NM-2C serve?
-
How many ports does C9300X-NM-2C provide?
-
Which switches are compatible with C9300X-NM-2C?
-
Does C9300X-NM-2C support standard Catalyst 9300 switches?
-
Which software release introduced C9300X-NM-2C?
-
How does C9300X-NM-2C differ from C9300X-NM-4C?
Warranty
Layer23-Switch.com offers genuine, high-quality ICT products at competitive wholesale prices—ensuring exceptional value without compromising quality.
All items are brand new, original, and factory-sealed.
Upon request, each unit can be fully tested and verified by a Cisco CCIE-certified engineer to ensure perfect working condition before shipment.
Our Cisco CCIE-certified experts provide free professional support via phone, email, online chat, or remote login—helping you deploy and troubleshoot with confidence.
If you are not satisfied with your purchase, you may request an exchange or full refund. Our customer service team will guide you through the return process quickly and smoothly. Visit Return Policy page for more information.
We support multiple secure payment and logistics options, backed by industry-leading verification:












Visit How to Pay page for more information
Extended, Worry-Free Warranty Coverage Factory New Sealed Enterprise Hardware:
· 3 Years Factory New Sealed
Visit Warranty Policy page for more information
Verify, plan, and comparewith confidence
Use practical tools to check device details, review lifecyclemilestones, and compare hardware before you buy.
Standard Services
Personalized Service, Superior Product Maintenance for Ultimate Satisfaction.
- Projects and Technical Support
- Easy Purchasing Supply
- Product Lifecycle Protection
- Exclusive F3 Team Support
Customized Support for Your Needs with CCIE, HCIE, HPE ASE, etc.

After-sale communication was professional and helpful.
Slotted into our existing setup with zero compatibility issues.
Got what we ordered, when we expected it. That’s all you can ask.