C9400-LC-48S – 48 Ports SFP – Catalyst 9400 line card

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New Factory Sealed
(7 customer reviews)

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10/mo Solds

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3-Year Warranty

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Available on backorder

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C9400-LC-48S Description

The C9400-LC-48S is a 48-port 1G SFP line card designed for secure and high-density fiber access within Cisco Catalyst 9400 modular switches. Featuring support for MACsec 256-bit encryption and full compatibility with a range of 1G SFP transceivers, this module is ideal for EMI-sensitive or fiber-required environments in enterprise, education, or government deployments. It supports jumbo frames and Energy Efficient Ethernet and provides up to 480 Gbps of slot bandwidth when paired with SUP-2XL, delivering scalable performance for fiber-based campus architectures.

Quick Spec

Attribute

Description

Model

C9400-LC-48S

Port Configuration

48 × 1 Gbps SFP nonblocking ports

Maximum Bandwidth

48 Gbps full-duplex, nonblocking traffic

Minimum Software Version

Cisco IOS XE 16.8.1 or later

Slot Density (Min/Max ports)

• C9404R: 48 / 96• C9407R: 48 / 240• C9410R: 48 / 384

Supervisor Compatibility

C9400-SUP-1, C9400-SUP-1XL, C9400-SUP-1XL-Y, C9400X-SUP-2, C9400X-SUP-2XL

IEEE 802.1AE (MACsec-256)

Hardware-based MACsec encryption

Jumbo Frame Support

Layer 2–4 Jumbo Frames up to 9,216 bytes

Key Applications

Gigabit Ethernet aggregation, Fiber-to-the-Desktop (FTTD), DSLAM/PON backhaul

Product Highlights

  • Non-blocking Gigabit Performance
    Delivers 48 × 1 Gbps SFP ports with a full-duplex switching capacity of 48 Gbps per slot, ensuring zero-loss aggregation and uplink traffic.
  • Built-in MACsec Encryption
    Hardware-accelerated IEEE 802.1AE (MACsec-256) secures data in transit without impacting throughput.
  • Jumbo-Frame Support
    Optimizes large-packet transport up to 9 216 bytes across Layers 2–4 for server, storage, and virtualization traffic.
  • Wide Supervisor Compatibility
    Seamlessly integrates with C9400-SUP-1, SUP-1XL, SUP-1XL-Y, C9400X-SUP-2, and SUP-2XL modules in any Catalyst 9400 chassis.
  • Versatile Deployment Use Cases
    Ideal for Gigabit Ethernet aggregation, Fiber-to-the-Desktop (FTTD), DSLAM/PON backhaul, and high-density campus or branch access.

Front View

C9400-LC-48S

1

STATUS LED

5

Ejector levers

2

LOCATE (blue beacon) LED

6

PORT LINK LED for the port in the top row

3

Model or product number

7

PORT LINK LED for the port in the bottom row

4

Captive installation screws

8

Line card Radio Frequency Identifier (RFID)

C9400-LC-48S 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

All

240 Gbps

1:1

C9400-SUP-1XL / 1XL-Y

All

120–240 Gbps

1:1 to 3:1

C9400-SUP-1

N/A

Not Supported

—

Product Comparison

Parameter

C9400-LC-48S

C9400-LC-24S

C9400-LC-24XS

Ports

48 × 1G SFP

24 × 1G SFP

24 × 10G SFP+

Port Speed

1G

1G

1G / 10G

MACsec Support

Yes (256-bit)

Yes (256-bit)

Yes (256-bit)

PoE Support

No

No

No

Jumbo Frames

Yes

Yes

Yes

Slot Bandwidth

Up to 480 Gbps

Up to 480 Gbps

Up to 480 Gbps

Supervisor Support

SUP-1XL / 2 / 2XL

SUP-1XL / 2 / 2XL

SUP-2 / 2XL only

IOS XE Requirement

16.6.1+

16.6.1+

17.3.1+

MTBF

443,210 hours

448,350 hours

456,110 hours

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

Get More Information

Discover unbeatable prices and fast shipping for the C9400-LC-48S Access the detailed C9400-LC-48S datasheet and ensure you’re getting the best deal with our reliable delivery service. Need assistance? Our free live chat support is here to help. For more information about the product and pricing, contact us via Live chat or email us at [email protected]

Quality Certifications

Specifications

Parameter Description
Model C9400-LC-48S
Port Count 48 × SFP ports
Port Speed 1G fiber (SFP-based)
PoE Support No
MACsec Yes, 256-bit hardware encryption
Slot Bandwidth Up to 480 Gbps (with SUP-2XL)
Supervisor Compatibility SUP-1XL, SUP-2, SUP-2XL
Chassis Compatibility C9404R, C9407R, C9410R
IOS XE Requirement 16.6.1 or later
Energy Efficiency IEEE 802.3az (EEE)
Jumbo Frame Support Up to 9216 bytes
RFID Integrated passive RFID tag
MTBF 443,210 hours

Customer Reviews

Write A Review
5.0
(7 reviews)
5 Stars
7
4 Stars
0
3 Stars
0
2 Stars
0
1 Stars
0
    Ronan Evans
    Posted on 09/01/2024
    Verified Buyer
    5.0

    All ports supported our optics, and performance is strong.

    Ayla Simmons
    Posted on 10/12/2023
    Verified Buyer
    5.0

    Perfect card for high-density fiber deployments. Installation was simple.

    Katherine Lee
    Posted on 28/11/2023
    Verified Buyer
    5.0

    Great price and compatible with all SFP optics we use.

    Jocelyn Wood
    Posted on 19/10/2023
    Verified Buyer
    5.0

    Used to expand our backbone links. Highly recommended.

    Elaina Scott
    Posted on 25/09/2023
    Verified Buyer
    5.0

    48 SFP ports are exactly what our aggregation switch needed. All tested and working.

Questions & Answers

  • What’s the first thing to check if the fiber links on the 48S are all down?

    Verify SFP modules are installed correctly, check fiber cable integrity, ensure IOS XE has enabled interfaces, and review link LEDs.

  • Which SFP caps are bundled with the 48S line card?

    You receive dust caps for every SFP port, plus rack-mount hardware in the box.

  • How does the 48-fiber card compare to the 48-copper TX?

    The 48S uses SFP fiber ports for optical connectivity, while 48TX is copper-only for twisted-pair cables.

  • Is there a RJ-45 replacement card for the 48S fiber only?

    Yes, the C9400-LC-48TX or 48UX provide RJ-45 copper alternatives.

  • What core aggregation designs favor the 48S module?

    The 48S is deployed in aggregation or core switch roles needing high-density fiber uplinks and flexible SFP/SFP+ support.

  • Which LEDs indicate individual fiber port faults on the 48S?

    Amber means link or port error; green is normal; off means no connection. Check both switch and SFP for issues.

  • How to hot-swap a 48S line card in a live chassis?

    With OIR, loosen screws, pull the card, insert replacement, and check 'show module' for recognition.

  • Which SFP transceivers (SR/LR) are validated for the 48S?

    Cisco-branded SFP and SFP+ (SR, LR, ER) transceivers are validated for the 48S.

  • How can I test each 48S port with loopback?

    Insert a loopback plug and run 'test cable-diagnostics tdr interface [id]' or use standard loopback tests.

  • Can I downgrade IOS before removing the 48S card?

    Yes, but confirm hardware/software compatibility and back up configuration before making changes.

  • Which installation tools come with the 48S?

    Dust covers, mounting brackets, and screws are included as standard accessories.

  • How do I clear MAC-FLT logs on the 48S?

    Use 'clear logging' in EXEC mode or clear specific MAC addresses with 'clear mac address-table'.

  • What routine cleaning prevents dust on the 48S port cage?

    Use fiber-safe compressed air and keep unused SFP ports covered with dust caps.

  • Does the 48S support jumbo frames up to 9 216 bytes?

    Yes, jumbo frame support is available; configure via interface MTU settings in IOS XE.

  • Which CLI commands show 48S optical RX/TX power?

    'show interfaces transceiver detail' and 'show controllers ethernet-controller' display per-port optics power levels.

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Resources Downloads

  • C9400-LC-48S Datasheet

Product Tag

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