C9300X-NM-4C – 4x100G/40G QSFP28 Module – Catalyst 9300X

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C9300X-NM-4C Description

C9300X-NM-4C is a Cisco Catalyst 9300X field-replaceable network module for high-speed uplink expansion on supported Catalyst 9300X switches. It provides four 40G/100G slots, dual-rate 100G and 40G support, QSFP+ connectors in each slot, support for C9300X-24Y, C9300X-48HX, and C9300X-48TX platforms, no support on standard Catalyst 9300 models, and Cisco IOS XE Bengaluru 17.6.1 introductory release context. The module adds four high-speed QSFP uplink positions to compatible Catalyst 9300X switches.

Quick Specs

Parameter

Specification

Product ID

C9300X-NM-4C

Product type

Network module

Cisco ordering description

Catalyst 9300 4 x 100G/40G dual rate QSFP28 network module

Port Count

4

Supported Port Speeds

100G and 40G

Module Slots

Four 40 GE/100 GE slots

Connector Type

QSFP+ connector in each slot

Supported Platforms

C9300X-24Y, C9300X-48HX, and C9300X-48TX

Standard Catalyst 9300 Support

Not supported on standard Catalyst 9300 models

Introductory Release

Cisco IOS XE Bengaluru 17.6.1

Spare SKU

C9300X-NM-4C=

Installation Type

Field-replaceable network module

Application Scenarios

Four-port 100G uplink expansion

Use C9300X-NM-4C when a supported Catalyst 9300X switch needs four 40G or 100G uplink slots for aggregation, distribution, or high-bandwidth campus backbone connectivity.

Higher uplink density than C9300X-NM-2C

Choose this module when two QSFP-class uplinks are not enough and the design needs additional uplink ports without changing to another switch family.

Switch-model-specific refresh planning

C9300X-NM-4C fits projects that already standardize on C9300X-24Y, C9300X-48HX, or C9300X-48TX. If the installed switch is another Catalyst 9300X model, confirm compatibility before quoting this module.

Product Comparison

Parameter

C9300X-NM-4C

C9300X-NM-2C

C9300X-NM-8Y

C9300X-NM-8M

Product type

QSFP28 network module

QSFP28 network module

SFP28 network module

Multigigabit copper network module

Port Count

4

2

8

8

Supported Port Speeds

100G/40G

100G/40G

25G/10G/1G

10G/mGig copper

Connector or Port Type

QSFP+ connector / QSFP28 ordering description

QSFP+ connector / QSFP28 ordering description

SFP28

Copper Ethernet

Supported Platform

C9300X-24Y, C9300X-48HX, C9300X-48TX

Catalyst 9300X Series switches

Catalyst 9300X Series switches

Catalyst 9300X Series switches

Introductory Release

Cisco IOS XE 17.6.1

Cisco IOS XE 17.5.1

Cisco IOS XE 17.5.1

Cisco IOS XE 17.5.1

Spare SKU

C9300X-NM-4C=

C9300X-NM-2C=

C9300X-NM-8Y=

C9300X-NM-8M=

Primary Media Planning

40G/100G QSFP optics

40G/100G QSFP optics or supported breakout

1G/10G/25G SFP optics

Copper cabling

  • Choose C9300X-NM-4C when the design needs four 40G or 100G uplink slots and the switch model is officially supported.
  • Choose C9300X-NM-2C when two QSFP-class uplinks are enough or the switch model does not support C9300X-NM-4C.
  • Choose C9300X-NM-8Y for 1G/10G/25G SFP-based uplinks instead of QSFP-class 40G/100G links.
  • Choose C9300X-NM-8M when the uplink or module requirement is copper multigigabit Ethernet rather than fiber/QSFP optics.

Selection Guide

1. Choose C9300X-NM-4C for supported Catalyst 9300X models that need

Select C9300X-NM-4C only when the target switch is C9300X-24Y, C9300X-48HX, or C9300X-48TX and the uplink design needs four 40G or 100G ports.

2. Choose C9300X-NM-2C when two 100G uplinks are enough

If the design needs only two high-speed uplinks, C9300X-NM-2C is the closer match and has broader Catalyst 9300X platform coverage.

3. Do not quote it for standard Catalyst 9300 switches

C9300X network modules are supported only on Catalyst 9300X switches. Standard Catalyst 9300 modular-uplink switches require C9300-NM modules instead.

4. Confirm optics and Cisco IOS XE release before purchase

Before ordering, verify Cisco-supported QSFP optics, DACs, AOCs, breakout requirements, and the target Cisco IOS XE release for the installed switch model.

Ordering Checklist

Check Item

What to Confirm

Why It Matters

Switch Model

C9300X-24Y, C9300X-48HX, or C9300X-48TX

Confirms the module is being ordered for a Cisco-listed compatible switch

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 right module type

Port Count

Four QSFP-class uplinks

Determines whether C9300X-NM-4C is required or C9300X-NM-2C is enough

IOS XE Release

Cisco IOS XE 17.6.1 or later for module introduction

Confirms the software baseline can support the module

Optics or Cables

Cisco-supported QSFP optics, DACs, AOCs, or breakout cables

Prevents ordering a module without compatible media

Spare Requirement

C9300X-NM-4C or C9300X-NM-4C=

Prevents confusion between base module and spare-part ordering

Specifications

Parameter Specification Parameter Specification
Product ID C9300X-NM-4C Product type Network module
Cisco ordering description Catalyst 9300 4 x 100G/40G dual rate QSFP28 network module Port Count 4
Supported Port Speeds 100G and 40G Module Slots Four 40 GE/100 GE slots
Connector Type QSFP+ connector in each slot Supported Platforms C9300X-24Y, C9300X-48HX, and C9300X-48TX
Introductory Release Cisco IOS XE Bengaluru 17.6.1 Spare Part Number C9300X-NM-4C=
Installation Type Field-replaceable network module    

Get More Information

Need pricing, stock, or shipping details for the C9300X-NM-4C ? 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.

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    Plugged it in and everything just worked. No surprises.

    Janet Fisher
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    International shipping was smooth. Proper documentation included.

Questions & Answers

  • Which port configuration comes with C9300X-NM-4C?

    C9300X-NM-4C provides 4 QSFP28 uplink slots, each supporting 40G or 100G operation. Every slot uses a QSFP+ connector for the selected Cisco-supported media.
  • Where can C9300X-NM-4C be installed?

    C9300X-NM-4C can be installed in C9300X-24Y, C9300X-48HX, and C9300X-48TX switches. Other Catalyst 9300X models need a module from their supported list.
  • Can C9300X-NM-4C be installed in a standard Catalyst 9300?

    No, C9300X-NM-4C is not supported in a standard Catalyst 9300. Its listed platforms are C9300X-24Y, C9300X-48HX, and C9300X-48TX.
  • When was C9300X-NM-4C introduced in Cisco IOS XE?

    C9300X-NM-4C was introduced with Cisco IOS XE Bengaluru 17.6.1. The target switch should run a release that supports this module and its planned optics.
  • How does C9300X-NM-4C differ from C9300X-NM-2C?

    C9300X-NM-4C supplies 4 dual-rate 40G/100G slots, compared with 2 on C9300X-NM-2C. The extra density is available only on its three listed Catalyst 9300X platforms.
  • What is C9300X-NM-4C used for?

    C9300X-NM-4C is a field-replaceable four-port QSFP28 uplink module for supported Catalyst 9300X switches. It delivers dual-rate 40G/100G connectivity on C9300X-24Y, C9300X-48HX, and C9300X-48TX.

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