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Home / Products / Transceivers / 100G/200G Transceivers / 100G QSFP28 / 102937

Cisco QSFP-100G-LR-S Compatible 100GBASE-LR Single Lambda QSFP28 PAM4 1310nm 10km LC Duplex SMF DDM Optical Transceiver Module

Product No :102937
2 Reviews
212 Solds
€ 223.90
Compatible
Transceivers type
249 in real-time stock, 09Jul, 2025

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Add to Cart Bulk Order Quotes 
1. Compliant to 100G Single Lambda MSA 
2. Supporting 10km reach of single mode fiber
3. 1311nm EML laser and PIN Receiver
4. Hermetically sealed TO Based design
5. Maximum power consumption 4.5W
6. KP4 FEC termination inside the module
See more

Specifications

Cisco QSFP-100G-LR-S Compatible 100GBASE-LR QSFP28 Optical Transceiver Module (PAM4, SMF, 1310nm, 10km, LC, DDM)

 

The Cisco QSFP-100G-LR-S compatible optical transceiver module is designed with duplex LC connectors, reaching a link up to 10km over single-mode fiber (OS2). QSFPTEK manufactured the 100G LR1 can convert the 4x25G NRZ electrical signals to a 1x100G PAM-4 optical signal. This transceiver is compliant with QSFP28 MSA and 100G Lambda MSA standards. Besides, the DDM (digital diagnostics monitoring) function is supported on the 100G fiber optic transceiver to achieve real-time operating parameters monitoring. With these features, this 100G QSFP28 transceiver is widely applied in Data Centers and 400G to 100G breakout applications. 

 

Part Number:

QT-QSFP28-LR1

Vendor Name:

QSFPTEK

Form Factor:

QSFP28

Data Rate:

103.125Gbps
Wavelength: 1310nm

Distance:

10km

Connector:

Duplex LC

Cable Type:

OS2 SMF

Transmitter:

 EML

Receiver Type:

PIN

TX Power:

-1.4 to +4.5dBm

RX Power:

-7.7 to +4.5 dBm

Power Consumption:

≤4.5W

Modulation Format:

PAM4

DDM:

Support

FEC:

Yes (built-in KP4 FEC)

Protocols: 

100G Lambda MSA 100G-LR Specification compliant, QSFP28 MSA, SFF-8636

Warranty:

5 Years

 

 
Quality Testing Program
Optical Transceivers Testing

Take a look at our test program to get the reliable and high-performance optical transceivers.

Quality Certifications

Applications

Scenario 1: 100G Switch to 100G Switch Direct Connectivity

QT-QSFP28-LR1 Scenario 1 100G Switch to 100G Switch Direct Connectivity 

 

Scenario 2: 100G Switch to 100G NIC Direct Connectivity

QT-QSFP28-LR1 Scenario 2 100G Switch to 100G NIC Direct Connectivity 

 

Scenario 3: 400G to 4x 100G Breakout Connectivity

QT-QSFP28-LR1 Scenario 3 400G to 4x 100G Breakout Connectivity 

 

Scenario 4: 400G to 4x 100G Breakout Connectivity with NIC

QT-QSFP28-LR1 Scenario 4 400G to 4x 100G Breakout Connectivity with NIC

Product details

Various Switch Tests

 

Every module is quality tested for compatibility in the multi-brand switches environment, which guarantees flawless operations.

 

 

 

Tested in The Host Device to Prove Interoperability

 

Every unit sold undergoes rigorous quality testing, to ensure compatibility in the target switch environment, guaranteeing perfect operation.

 

QSFPTEK Test Rack

 

 

Comprehensive Testing

 

Every module is qualified through rigorous procedures and advanced equipment to ensure high-quality and reliable optical devices for you.

 

QSFPTEK Test Devices

 

  

Single Lambda QSFP28 Contrast Table

 

Part Number

QT-QSFP28-DR1

QT-QSFP28-FR1

QT-QSFP28-LR1

Image

Center Wavelength

1310nm

1310nm

1310nm

Connector

Duplex LC

Duplex LC

Duplex LC

Cable Distance (Max.)

500m (built-in KP4 FEC)

2km (built-in KP4 FEC)

10km (built-in KP4 FEC)

Cable Type

SMF

SMF

SMF

Modulation

PAM4

PAM4

PAM4

Transmitter Type

EML

EML

EML

Receiver Type

PIN

PIN

PIN

Temperature Range

0 to 70°C

0 to 70°C

0 to 70°C

Application

Data Center

100GBASE Ethernet

400G to 4x 100G or 800G to 8x 100G Breakout

Data Center

100GBASE Ethernet

400G to 4x 100G or 800G to 8x 100G Breakout

Data Center

100GBASE Ethernet

400G to 4x 100G or 800G to 8x 100G Breakout

 

Questions & Answers

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  • Good Price (2)
  • Shopping Experience (1)
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  • High Reliability (1)
  • James United States of America
    2025-07-04

    I noticed them on youtube. The prices are attractive and some of the videos are very inspiring. I recommended QSFPTEK for this project. Finally bought it here smoothly and got a bulk discount. The packaging is intact, the product workmanship is decent, and no problems were found during the test. If there are any problems later, I will report back.

    Transceivers typeQSFP-100G-LR-S

    CompatibleCisco

    Verified Purchase

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  • Gabriel O'Neal United States of America
    2024-11-15

    The performance of the product was very good and the test information obtained by our lab was consistent with the data on the website. QSFPTEK offered us the lowest price and we were pleasantly surprised that the quality of the product is still as good as ever.

    Transceivers typeQSFP-100G-LR-S

    CompatibleCisco

    Verified Purchase

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    0

Video

Resources

  • PDF Document
    QT-QSFP28-LR1 Datasheet.pdf
  • PDF Document
    Transceiver Module User Guide.pdf
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Cisco QSFP-100G-LR-S Compatible 100GBASE-LR Single Lambda QSFP28 PAM4 1310nm 10km LC Duplex SMF DDM Optical Transceiver Module

Compatible Cisco

Transceivers type QSFP-100G-LR-S

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Mark

2023-12-15
This product works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent value fo ct works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent valur money!

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Cisco QSFP-100G-LR-S Compatible 100GBASE-LR Single Lambda QSFP28 PAM4 1310nm 10km LC Duplex SMF DDM Optical Transceiver Module
€ 223.90
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QSFP-100G-LR-S
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Cisco QSFP-100G-LR-S Compatible 100GBASE-LR Single Lambda QSFP28 PAM4 1310nm 10km LC Duplex SMF DDM Optical Transceiver Module

Compatible Cisco

Transceivers type QSFP-100G-LR-S

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