C9400-LC-24XS – 24×10G SFP+ Ports – Catalyst 9400 Line Card

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C9400-LC-24XS Description

C9400-LC-24XS, also known as Cisco Catalyst 9400 24-Port 10G SFP+ line card, enables high-performance, high-density 10 Gigabit and Gigabit fiber connectivity for the Catalyst 9400 modular switches. This card features 24 SFP+ ports, each supporting both 10G SFP+ and 1G SFP transceivers for maximum deployment flexibility. The SFP+ module delivers up to 480Gbps of line-rate bandwidth per slot (with SUP-2XL), making it ideal for enterprise backbone, aggregation, and high-speed campus deployments. The card supports jumbo frames, MACsec-256 encryption, hot-swappable installation, and seamless compatibility with all major Catalyst 9400 supervisor engines. This 24-port 10G/1G fiber line card is the perfect solution for organizations seeking scalable, secure, and future-ready network expansion.

Product Performance

Ethernet Ports
Maximum Bandwidth
Max rated power

Quick Specs

Parameter

Specification

Port Quantity

24 SFP+/SFP ports (10Gbps or 1Gbps each)

Port Type

SFP+ (10G) / SFP (1G) fiber, interchangeable

Line-rate Capacity

Up to 480 Gbps per slot (SUP-2XL)

Supervisor Support

All SUPs, optimal with SUP-2XL/SUP-2

Jumbo Frame Support

Up to 9216 bytes

MACsec

IEEE 802.1AE (MACsec-256) hardware support

Min. Software

IOS XE 16.6.2 or later

Max Power Usage

200W

Key Features

24x Dual-Speed Fiber Ports

Supports up to 24 SFP+ slots for 10G or 1G fiber connections, offering flexibility for new and existing network infrastructures.

High Line-Rate Bandwidth

Delivers up to 480Gbps per slot (SUP-2XL), ensuring wire-speed, non-blocking performance for backbone and aggregation layers.

Broad Supervisor Compatibility

Operates seamlessly with all major Catalyst 9400 supervisor engines, supporting flexible upgrades and migrations.

MACsec-256 Hardware Security

Built-in IEEE 802.1AE MACsec-256 encryption secures all fiber links at wire-speed, ideal for sensitive data environments.

Jumbo Frame Support

Enables jumbo frames up to 9216 bytes for efficient large-data and storage traffic.

Hot-Swappable & Easy Maintenance

Allows tool-less installation/removal in any Catalyst 9400 chassis slot, ensuring minimal downtime and easy service.

Front View

C9400-LC-24XS

1

STATUS LED

5

Ejector levers

2

LOCATE (blue beacon) LED

6

PORT LINK LED

3

Model or product number

7

Line card Radio Frequency Identifier (RFID)

4

Captive installation screws

Slot Bandwidth by SUP & Chassis

Supervisor Engine

Chassis

Per-Slot Bandwidth

Oversubscription

C9400X-SUP-2XL

C9404R

480 Gbps

1:1

C9407R

480 Gbps

1:1

C9410R

480 Gbps

1:1

C9400X-SUP-2

C9404R

240 Gbps

1:1

C9407R

240 Gbps

1:1

C9410R

240 Gbps

1:1

Product Comparison

Parameter

C9400-LC-24XS

C9400-LC-12QC

C9400-LC-24S

Ports

24 × 10G SFP+

12 × 40G QSFP+ (breakout)

24 × 1G SFP

Breakout Support

No

Yes (4×10G per QSFP+)

No

MACsec Support

Yes (256-bit)

Yes (256-bit)

Yes (256-bit)

Supervisor Support

SUP-2, SUP-2XL only

SUP-1XL, SUP-2, SUP-2XL

SUP-1XL, SUP-2, SUP-2XL

Slot Bandwidth

Up to 480 Gbps

Up to 480 Gbps

Up to 480 Gbps

PoE Support

No

No

No

MTBF

456,110 hours

418,200 hours

448,350 hours

IOS XE Requirement

17.3.1+

16.6.1+

16.6.1+

Line Card Supervisor Module Compatibility Overview

C9400-SUP-1

C9400-SUP-1XL

C9400-SUP-1XL-Y

C9400X-SUP-2

C9400X-SUP-2XL

C9400-LC-12QC

No

No

No

Yes

Yes

C9400-LC-24S

Yes

Yes

Yes

Yes

Yes

C9400-LC-24XS

Yes

Yes

Yes

Yes

Yes

C9400-LC-24XY

No

No

No

Yes

Yes

C9400-LC-48H

Yes

Yes

Yes

Yes

Yes

C9400-LC-48HN

Yes

Yes

Yes

Yes

Yes

C9400-LC-48HX

No

No

No

Yes

Yes

C9400-LC-48P

Yes

Yes

Yes

Yes

Yes

C9400-LC-48S

Yes

Yes

Yes

Yes

Yes

C9400-LC-48T

Yes

Yes

Yes

Yes

Yes

C9400-LC-48TX

No

No

No

Yes

Yes

C9400-LC-48U

Yes

Yes

Yes

Yes

Yes

C9400-LC-48UX

Yes

Yes

Yes

Yes

Yes

C9400-LC-48XS

No

No

No

Yes

Yes

Specifications

Packaging weight and dimensions included:
Weight 23.43 kg
Dimensions 62 × 62 × 24 cm
Parameter Description
Model C9400-LC-24XS
Port Count 24 × SFP+ ports
Port Speed 1G/10G Fiber
PoE Support Not supported
MACsec 256-bit encryption supported
Slot Bandwidth Up to 480 Gbps
Supervisor Compatibility C9400X-SUP-2, SUP-2XL only
Chassis Compatibility C9404R, C9407R, C9410R
IOS XE Requirement 17.3.1 or later
Energy Efficient Ethernet IEEE 802.3az supported
Jumbo Frame Support Up to 9216 bytes
RFID Integrated passive RFID tag
MTBF 456,110 hours

Get More Information

Need pricing, stock, or shipping details for the C9400-LC-24XS ? 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

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(13 reviews)
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    Anna Martinez
    Posted on 08/02/2026
    Verified Buyer
    5.0

    The trust is earned by consistent execution.

    Christian Morgan
    Posted on 27/01/2026
    Verified Buyer
    5.0

    Production deployment was clean and uneventful.

    Carlos White
    Posted on 26/01/2026
    Verified Buyer
    5.0

    Box contents matched the shipping manifest perfectly. Nothing missing, nothing extra.

    Supply Chain
    Posted on 15/10/2025
    Verified Buyer
    5.0

    Shipping to Germany was no problem. Good service.

    Anna Marie
    Posted on 05/06/2025
    Verified Buyer
    5.0

    Sugar, y’all are fast. It got here quick.

Questions & Answers

  • What is C9400-LC-24XS used for with 24-port 10G SFP+ and 1G fiber?

    C9400-LC-24XS is a 24-port SFP+/SFP line card for 10G or 1G fiber connectivity in Catalyst 9400 chassis designs.
  • Does C9400-LC-24XS support 10G and 1G SFP+ fiber optics?

    Yes. C9400-LC-24XS supports 10 GE or 1 GE operation using SFP+ or SFP optics, subject to platform transceiver support.
  • When does C9400-LC-24XS fit instead of C9400-LC-48XS for 10G SFP+ fiber?

    C9400-LC-24XS fits smaller 10G fiber builds that need 24 SFP+/SFP ports and reserve chassis slots for copper, mGig, or QSFP line cards.
  • How is C9400-LC-24XS different from C9400-LC-24S for 10G SFP+?

    C9400-LC-24XS supports 10G or 1G fiber. C9400-LC-24S is a 24-port 1G SFP line card.
  • Is C9400-LC-24XS for copper or PoE access?

    No. C9400-LC-24XS is an SFP+/SFP fiber line card. RJ-45 copper and powered endpoint access use different C9400 line cards.
  • Can C9400-LC-24XS be used for aggregation links?

    Yes. C9400-LC-24XS fits 10G fiber aggregation or distribution links where 24 SFP+ ports are enough.
  • When is C9400-LC-24XS wrong for 25G SFP28, QSFP, or PoE?

    C9400-LC-24XS is wrong for 25G SFP28 links, 40G or 100G QSFP links, copper access, or PoE endpoint power.
  • What 24-port 10G SFP+ fiber, optics, and slot planning details matter for C9400-LC-24XS?

    C9400-LC-24XS planning centers on 24 SFP+/SFP ports, selected 10G or 1G optics, fiber reach, and whether a 24-port card leaves slots for other media types.

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  • C9400-LC-24XS Datasheet