C9350-NM-8Y – 8x25G/10G/1G or 4x50G SFP56 Module – C9350

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C9350-NM-8Y Description

The C9350-NM-8Y is a Cisco Catalyst 9350 Series Smart Switches network module for adding SFP-based fiber uplinks from 1G to 50G to access switches. The module has eight SFP56 ports that run at 1G, 10G or 25G, or four ports at 50G, for up to 200 Gbps of uplink bandwidth, and it is hot-swappable. Converting the upper row to 50G mode disables the lower row, and the module installs in C9350-24P, C9350-48P, C9350-24T, C9350-48T, C9350-24U, C9350-48U, C9350-48TX and C9350-48HX.

Quick Specs

Parameter

Specification

Product ID

C9350-NM-8Y

Product type

Network module

Total ports

8 SFP56 slots

Supported port speeds

1G, 10G, 25G, and 50G

1G/10G/25G mode

Eight ports

50G mode

Four ports

Connector type

SFP56

Supported switch family

Cisco C9350 Series

Listed compatible models

C9350-48HX, C9350-24P, C9350-48P, C9350-24T, C9350-48T, C9350-48TX, C9350-24U, C9350-48U

Installation type

Field-replaceable network module

Media planning

Cisco-supported SFP/SFP+/SFP28/SFP56 optics, DACs, or AOCs

Application Scenarios

Fiber Uplinks On SFP Optics

A branch or campus closet with existing 10G or 25G SFP optics can connect its C9350-24T or C9350-48T to the aggregation layer through the module without moving to QSFP28 cabling.

Phased Move To 50G

A PoE access closet built on C9350-48P can start with 10G or 25G links and later convert the upper row of the module to four 50G uplinks as aggregation capacity grows.

Product Comparison

Parameter

C9350-NM-8Y

C9350-NM-2C

C9350-NM-4C

Uplink ports

8 x 1G/10G/25G, or 4 x 50G with the lower row disabled

2 x 40G/100G

4 x 40G/100G

Connector type

SFP56

QSFP28

QSFP28

Maximum uplink bandwidth

200 Gbps

200 Gbps

400 Gbps

Supported media

SFP, SFP+, SFP28 and SFP56 optics, DACs or AOCs

QSFP optics, DACs, AOCs or breakout cables

QSFP optics, DACs, AOCs or breakout cables

Supported host switches

C9350-24P, C9350-48P, C9350-24T, C9350-48T, C9350-24U, C9350-48U, C9350-48TX, C9350-48HX

C9350-24P, C9350-48P, C9350-24T, C9350-48T, C9350-24U, C9350-48U, C9350-48TX, C9350-48HX

C9350-48HX, C9350-48TX, C9350-24Y

C9350-NM-8Y is the SFP56 module of this group, with eight 1G/10G/25G ports by default or four 50G ports when the upper row is converted, which disables the lower row, while C9350-NM-2C and C9350-NM-4C use QSFP28 cages for 40G or 100G. Both modes top out at 200 Gbps, so a design that needs 400 Gbps of uplink must use C9350-NM-4C, which installs only in C9350-48HX, C9350-48TX and C9350-24Y. For 100G uplinks on C9350-24P, C9350-48P, C9350-24T, C9350-48T, C9350-24U or C9350-48U, C9350-NM-2C is the module to choose, with two ports and up to 200 Gbps.

Ordering Checklist

  • Catalyst 9350 hosts: Use the module in C9350-24P, C9350-48P, C9350-24T, C9350-48T, C9350-24U, C9350-48U, C9350-48TX and C9350-48HX. Other host models are not on Cisco’s support list.
  • Module PID: Order C9350-NM-8Y on a new switch order and C9350-NM-8Y= as the spare. The = PID is the separate spare for replacing or adding a module on an installed switch.

Specifications

Parameter Specification Parameter Specification
Product ID C9350-NM-8Y Product type Network module
Total ports 8 SFP56 slots Supported port speeds 1G, 10G, 25G, and 50G
1G/10G/25G mode Eight ports 50G mode Four ports
Connector type SFP56 Supported switch family Cisco C9350 Series
Listed compatible models C9350-48HX, C9350-24P, C9350-48P, C9350-24T, C9350-48T, C9350-48TX, C9350-24U, C9350-48U Installation type Field-replaceable network module
Media planning Cisco-supported SFP/SFP+/SFP28/SFP56 optics, DACs, or AOCs

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Questions & Answers

  • Which ports on C9350-NM-8Y go inactive when it is converted to 4 x 50G mode?

    Ports 5 to 8 become inactive, leaving ports 1 to 4 running at 50G each. The default mode is 8 x 1G/10G/25G. The module is exclusive to C9350 switches and is one of the Phase 1 uplink modules for Cisco IOS XE 17.18.1.
  • Which Cisco IOS XE release is needed for C9350-NM-8Y?

    C9350-NM-8Y is one of the Phase 1 uplink modules for Cisco IOS XE 17.18.1, alongside C9350-NM-4C and C9350-NM-2C. Run IOS XE 17.18.1 or later on the host switch before fitting the module. Its default mode is eight ports at 10G or 25G.
  • Which media can the SFP56 ports of C9350-NM-8Y use?

    The ports take Cisco-supported SFP, SFP+, SFP28 and SFP56 optics, direct-attach cables or active optical cables. The module has eight SFP56 slots. Match the media to the port speed, which is 1G, 10G or 25G in the default mode and 50G on four ports after conversion.
  • Can a failed C9350-NM-8Y be replaced in the field?

    Yes. C9350-NM-8Y is a field-replaceable network module with eight SFP56 slots, so a failed unit is exchanged on site. A replacement or additional module is ordered as the spare PID C9350-NM-8Y=. Set the eight-port or four-port mode again on the new module.

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DataSheet Downloads

  • C9350-NM-8Y Datasheet