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    Home / Products / Transceivers / 100G/200G Transceivers / 100G QSFP28 / 102960

    Cisco Compatible 100GBASE-LH4 QSFP28 1310nm 20km LC Duplex SMF DDM Optical Transceiver Module

    Product No: 102960
    2 Reviews
    121 Sold
    US$ 239.00  US$ 299.00
    Compatible
    Transceivers type
    1180 in real-time stock, 23 Jun, 2026

    Free Shipping over US$ 79.8

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    30-day Return and Refund

    5-Year Warranty 30-Day Returns 90-Day Exchange
    Warranty
    Providing industry-leading limited lifetime warranty.
    Please check our warranty policy for details.
    Returns & Exchange
    Exchanges caused by the customer's reasons will not be accepted.
    Please ensure that the item you're returning is repackaged with all the cords, adapters, and documentation included when you receive it.
    Please check our Return Policy for details.
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    Add to Cart Bulk Order Quotes 
    1. Rate: 100G; Connector: LC; with DDM
2. EML+PIN; Low Power Consumption ≤4W
3. Applied in Campus Network, Data Center and Enterprise Core Layer
4. Compatible with 200+ Vendors
5. Hot Pluggable QSFP28 MSA Compliant
    See more

    Specifications

    Cisco Compatible 100GBASE-LH4 QSFP28 Optical Transceiver Module (SMF, 1310nm, 20km, LC, DDM)

     

    The Cisco compatible optical transceiver module is designed with duplex LC connectors, reaching a link up to 20km over single-mode fiber(SMF). QSFPTEK manufactured 100GBASE-LH4 QSFP28 transceiver module is compliant with IEEE 802.3ba 100GBASE-LR4, QSFP28 MSA standard. Besides, 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 100G telecom connections, data centers, high-performance computing networks, enterprise core and distribution layers, campus networks, etc.

     

    Part Number:

    QT-QSFP28-LH4

    Vendor Name:

    QSFPTEK

    Form Factor:

    QSFP28

    Data Rate:

    100Gbps

    Wavelength:

    1295~1310nm

    Distance:

    20km (20km with FEC; 10km without FEC)

    Connector:

    Duplex LC

    Cable Type:

    OS2 SMF

    Transmitter:

    4x LAN WDM EML

    Receiver Type:

    PIN

    TX Power:

    -4.3~4.5dBm

    Receiver Sensitivity:

    <-10.6dBm

    Power Consumption:

    ≤4W

    Modulation Format:

    NRZ

    DDM:

    Support

    Bit Error Ratio (BER):

    1.00E-12

    Protocols: 

    IEEE 802.3ba 100GBASE-LR4, QSFP28 MSA, SFF-8661, 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

    Features

    • 1. High Reliablility and Best Price
      Proudly self-producing and rigorous testing, QSFPTEK is dedicated to delivering cost-effective products with high reliability and performance at trade price.
    • 2. Wide Application Scenarios
      Fully compatible with almost all Cisco devices. Ideal for 100G telecom connections, data center, high-performance computing networks, enterprise core and distribution layers etc.
    • 3. Protocols
      Compliant with IEEE 802.3ba 100GBASE-LR4, QSFP28 MSA, SFF-8665, SFF-8636.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

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

    100G-LH4 Direct Connectivity

     

     

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

    100G-LH4 NIC Direct Connectivity

     

    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

     

     

    100G QSFP28 Model Contrast Table

            

    Part Number

    QT-QSFP28-SR4

    QT-QSFP28-PSM4

    QT-QSFP28-IR4

    QT-QSFP28-LR4

    QT-QSFP28-CWDM-LR4

    QT-QSFP28-ER4 (Rx SOA)

    QT-QSFP28-ZR4

    Image

    Wavelength

    850nm

    1310nm

    1271~1331nm

    1310nm

    1271~1331nm

    1310nm

    1310nm

    Max Distance

    100m

    500m

    2km

    10km

    10km

    40km

    80km

    Cable Type

    OM3/OM4 MMF

    OS2 SMF

    OS2 SMF

    OS2 SMF

    OS2 SMF

    OS2 SMF

    OS2 SMF

    Connector

    MPO/MTP-12

    MPO/MTP-12

    LC Duplex

    LC Duplex

    LC Duplex

    LC Duplex

    LC Duplex

    Tx Power(dBm)

    -8.4~+2.4

    -9.4~+2

    -6.5~+2.5

    -4.3~+4.5

    -6.5~+2.5

    -2.9~+4.5

    +2~+7

    Rx Sensitivity(dBm)

    -10.3

    -12.66

    -11.5

    -10.6

    -11.5

    -20.9

    -27

    Max Power Consumption

    2.5W

    3.5W

    3.5W

    4W

    3.5W

    5W

    5.5W

    Source

    VCSEL+PIN

    DFB+PIN

    CWDM DFB+ PIN

    EML+PIN

    CWDM DFB +PIN

    4x EML+SOA+PIN

    EML+SOA+PIN

    Operating Temperature

    0~70°C

    0~70°C

    0~70°C

    0~70°C

    -40~85°C (Available)

    0~70°C

    0~70°C

    -20~85°C (Available)

    0~70°C

    -40~85°C (Available)

     

    Questions & Answers

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    Customer Reviews

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    • ALL (2)
    • Good Price (1)
    • Shopping Experience (1)
    • Truda Hamlet United States of America
      2025-10-17

      I used this 100GBASE-LH4 module for my network upgrade. It stays stable over 20 km with almost no signal loss and works perfectly with my Cisco switches. After months of use, no link drops or overheating. Much cheaper than big brands but performs just as well — a solid choice.

      Transceivers typeQSFP-100G-LH4

      CompatibleCisco

      Verified Purchase

      Helpful

      0

    • Hector Q. United States of America
      2025-07-17

      This module costs only a fraction of the price of the original Cisco LR4, but the speed is doubled, I think it is worth it!

      Transceivers typeQSFP-100G-LH4

      CompatibleCisco

      Verified Purchase

      Helpful

      0

    Resources

    • PDF Document
      QT-QSFP28-LH4 Datasheet.pdf
    • PDF Document
      Transceiver Module User Guide.pdf
    Check Test Reports on Target Device
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    Cisco Compatible 100GBASE-LH4 QSFP28 1310nm 20km LC Duplex SMF DDM Optical Transceiver Module

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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!

    Verified Purchase

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    Cisco Compatible 100GBASE-LH4 QSFP28 1310nm 20km LC Duplex SMF DDM Optical Transceiver Module
    US$ 299.00
    Compatible
    Cisco
    Transceivers type
    QSFP-100G-LH4
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    Bulk Order Quotes
    Cisco Compatible 100GBASE-LH4 QSFP28 1310nm 20km LC Duplex SMF DDM Optical Transceiver Module

    Compatible Cisco

    Transceivers type QSFP-100G-LH4

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