C9300X-NM-8Y – 8x25G/10G/1G SFP28 Module – Catalyst 9300X

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C9300X-NM-8Y Description

C9300X-NM-8Y is a Cisco Catalyst 9300X field-replaceable network module for SFP28 uplink expansion. It provides eight SFP28 ports with 25G, 10G, and 1G speed support, Catalyst 9300X Series platform scope, hot-swappable installation, Cisco-supported SFP, SFP+, or SFP28 transceiver requirements, Cisco IOS XE Bengaluru 17.5.1 introductory release, and C9300X-HXN port-use boundaries under later and earlier IOS XE releases. The module adds high-density 25G-capable fiber uplinks to Catalyst 9300X switches.

Quick Specs

Parameter

Specification

SKU

C9300X-NM-8Y

Product Type

Network module

Port Count

8

Port Speeds

25G, 10G, 1G

Port Form Factor

SFP28

Supported Platform

Cisco Catalyst 9300X Series switches

C9300X-HXN Usable Ports

Up to 6 ports on Cisco IOS XE 17.8.1 and later; ports 7 and 8 disabled

Earlier HXN Release Behavior

Ports 1 to 4 usable on Cisco IOS XE 17.7.1 and earlier

Introductory Release

Cisco IOS XE Bengaluru 17.5.1

Hot Swappable

Yes

Optics Requirement

Cisco-supported SFP, SFP+, or SFP28 transceivers

Application Scenarios

Catalyst 9300X fiber uplink expansion

Use C9300X-NM-8Y when a Catalyst 9300X access switch needs modular 1G, 10G, or 25G SFP28 uplinks to distribution, core, or aggregation switches.

25G uplinks for high-density access closets

Choose this module when the access layer needs more uplink headroom than 10G modules provide, while still preserving support for 10G or 1G optics where required.

Module replacement planning for Catalyst 9300X deployments

Use C9300X-NM-8Y when a Catalyst 9300X deployment needs the same 8-port SFP28 uplink module for expansion or replacement planning. If the purchase is specifically for spare-part ordering, confirm whether the spare SKU C9300X-NM-8Y= is required.

Product Comparison

Parameter

C9300X-NM-8Y

C9300X-NM-8M

C9300X-NM-2C

C9300X-NM-4C

Product Type

SFP28 network module

Multigigabit network module

QSFP28 network module

QSFP28 network module

Port Count

8

8

2

4

Port Speeds

25G/10G/1G

Multigigabit Ethernet

100G/40G

100G/40G

Connector Type

SFP28

Copper Ethernet

QSFP28

QSFP28

Supported Platform

Catalyst 9300X Series

Catalyst 9300X Series

Catalyst 9300X Series

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

Introductory Release

Cisco IOS XE 17.5.1

Cisco IOS XE 17.5.1

Cisco IOS XE 17.5.1

Cisco IOS XE 17.6.1

HXN Port Limitation

Ports 1 to 6 usable on 17.8.1 and later

Ports 1 to 6 usable on 17.8.1 and later

Ports 1 and 2 usable on 17.8.1 and later

Not listed in the HXN limitation table

Media Planning

SFP/SFP+/SFP28 optics

Copper cabling

QSFP28 optics or breakout on supported port

QSFP28 optics

  • Choose C9300X-NM-8Y when the Catalyst 9300X switch needs SFP28 uplinks at 25G, 10G, or 1G.
  • Choose C9300X-NM-8M when the uplink design requires copper multigigabit Ethernet instead of fiber optics.
  • Choose C9300X-NM-2C or C9300X-NM-4C when the design requires 40G or 100G uplinks.
  • Check the switch model carefully because C9300X-NM-4C has narrower platform support than C9300X-NM-8Y.

Selection Guide

1. Choose C9300X-NM-8Y for Catalyst 9300X SFP28 uplinks

Select C9300X-NM-8Y when the switch is a Catalyst 9300X model and the uplink design needs eight SFP28 slots for 25G, 10G, or 1G optics.

2. Do not quote it for standard Catalyst 9300 switches

C9300X network modules are supported only on Catalyst 9300X switches. For standard Catalyst 9300 switches, compare C9300-NM modules instead.

3. Check HXN usable-port restrictions

For Catalyst 9300X-HXN switches, Cisco lists C9300X-NM-8Y with ports 1 to 6 usable on IOS XE 17.8.1 and later, while ports 7 and 8 are permanently disabled.

4. Confirm optics and IOS XE release before purchase

Before ordering, confirm supported SFP, SFP+, or SFP28 optics in Cisco compatibility tools and verify the target IOS XE release for the switch model.

Ordering Checklist

Check Item

What to Confirm

Why It Matters

Switch Model

Catalyst 9300X Series switch

Confirms the module is being ordered for the supported platform family

Standard C9300 Compatibility

Whether the switch is C9300X or standard C9300

C9300X-NM modules are not for standard Catalyst 9300 switches

HXN Model

Whether the switch is Catalyst 9300X-HXN

HXN models have usable-port limits for C9300X-NM-8Y

IOS XE Release

Cisco IOS XE 17.5.1 or later for module support

Confirms the software release supports the network module

Uplink Speed

25G, 10G, or 1G requirement

Determines whether SFP28 uplinks are the right choice

Optics

Cisco-supported SFP, SFP+, or SFP28 transceivers

Prevents ordering an uplink module without compatible optics

Alternative Module

C9300X-NM-8M, C9300X-NM-2C, or C9300X-NM-4C if port type differs

Avoids quoting an SFP28 module when copper, 40G, or 100G uplinks are required

Spare SKU

Whether the order needs C9300X-NM-8Y or C9300X-NM-8Y=

Prevents confusion between the base module SKU and spare-part ordering

Specifications

Parameter Specification Parameter Specification
SKU C9300X-NM-8Y Product Type Network module
Port Count 8 Port Speeds 25G, 10G, 1G
Port Form Factor SFP28 Supported Platform Cisco Catalyst 9300X Series switches
Introductory Release Cisco IOS XE Bengaluru 17.5.1 Hot Swappable Yes
Optics Support Cisco-supported SFP, SFP+, and SFP28 transceivers C9300X-HXN Usable Ports Ports 1 to 6 usable on Cisco IOS XE 17.8.1 and later; ports 7 and 8 disabled
Earlier HXN Release Behavior Ports 1 to 4 usable on Cisco IOS XE 17.7.1 and earlier    

Get More Information

Need pricing, stock, or shipping details for the C9300X-NM-8Y ? 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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    They helped us plan a phased order to match our deployment timeline.

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    Layer23 fits the profile of a strategic supplier perfectly. Would have liked a tracking update sooner, but the product is great.

Questions & Answers

  • What does C9300X-NM-8Y include?

    C9300X-NM-8Y is a field-replaceable Cisco Catalyst 9300X network module with eight SFP28 uplink ports. It supports 25G, 10G, and 1G operation.
  • Which port modes does C9300X-NM-8Y provide?

    C9300X-NM-8Y provides eight SFP28 ports with 25G, 10G, and 1G speed support. Cisco-supported SFP, SFP+, or SFP28 transceivers are required for the selected mode.
  • Which switch family is compatible with C9300X-NM-8Y?

    C9300X-NM-8Y is compatible with Cisco Catalyst 9300X Series switches. Standard Catalyst 9300 switches require the separate C9300-NM module family.
  • How does C9300X-NM-8Y differ from C9300X-NM-2C?

    C9300X-NM-8Y provides eight SFP28 ports at 25G, 10G, or 1G, while C9300X-NM-2C provides two QSFP28 ports for 40G or 100G uplinks.
  • Is C9300X-NM-8Y hot-swappable?

    Yes, C9300X-NM-8Y is hot-swappable in its supported Catalyst 9300X platform scope. The target switch model and Cisco IOS XE release still control module recognition and usable ports.
  • When are all eight ports on C9300X-NM-8Y unavailable for C9300X-HXN?

    C9300X-NM-8Y is limited to ports 1 to 6 on C9300X-HXN with Cisco IOS XE 17.8.1 and later; ports 7 and 8 are disabled. Cisco IOS XE 17.7.1 and earlier allows ports 1 to 4.
  • Which software and optics dependencies apply to C9300X-NM-8Y?

    C9300X-NM-8Y was introduced with Cisco IOS XE Bengaluru 17.5.1 and requires Cisco-supported SFP, SFP+, or SFP28 transceivers. The installed switch release must also match any C9300X-HXN port-use limits.

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