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    Products / Transceivers / 400G/800G/1.6T Ethernet Transceivers / 400G QSFP-DD / 100245
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    Dell Compatible 400GBASE-LR8 400G QSFP-DD LR8 PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module

    Product No: 100245
    0 Reviews
    175 Sold
    $3,099.00
    Compatible
    Transceivers type
    21 in real-time stock, 26Oct, 2026

    Free Shipping over US$ 79.8

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    5-Year Warranty 1-Year 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. Max data rate up to 425Gbps. QSFP-DD form factor.
2. Reach up to 10km over OS2.
3. Macom DSP Chip.
4. 8x 50G PAM4 modulation.
5. Compliant with QSFP-DD MSA, IEEE 802.3bs protocol, and 400GAUI-8/CEI-56G-VSR-PAM4.
    See more

    Specifications

    Dell Compatible 400GBASE-LR8 400G QSFP-DD LR8 PAM4 1310nm 10km DOM Optical Transceiver Module (SMF, 1310nm, 10km, LC Connector, DOM)

     

    The Dell 400GBASE-LR8 compatible optical transceiver module is designed with duplex LC connectors, reaching a link up to 10km over a standard pair of G.652 single-mode fiber(OS2). QSFPTEK manufactured 400GBASE-LR8 QSFP-DD transceiver module is compliant with QSFP-DD MSA, IEEE 802.3bs protocol, and 400GAUI-8/CEI-56G-VSR-PAM4 standard. Besides, 400G LR8 is designed based on PAM4 (Pulse Amplitude Modulation 4-level) modulation technology, DSP (Digital Signal Processing) chip, and QSFP-DD form factor. With these features, this 400G QSFP-DD transceiver is widely applied in 400G telecom connections, DCI, metro network, long-haul, and high-performance computing networks application.

     

    Part Number QT-QSFP-DD-LR8 Vendor Name QSFPTEK
    Form Factor QSFP-DD Interface Type LR8
    Max Data Rate 425Gbps Wavelength 1310nm
    Connector Duplex LC/UPC Cable Type SMF
    Max Cable Distance 10km Modulation PAM4
    TX Power -2.8~5.3dBm Receiver Sensitivity <-9.1dBm
    Transmitter Type LWDM EML Receiver Type PIN
    Power Consumption ≤13W Temperature Range 0 to 70°C (32 to 158°F)
    DDM/DOM Supported Forward Error Correction (FEC) Host FEC Supported
    Protocols QSFP-DD MSA, IEEE 802.3bs Warranty 1 Year
    Quality Testing Program
    Optical Transceivers Testing

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

    Quality Certifications

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    Features

    • 1. Advanced Technology
      Features with PAM4 modulation technology, DSP chip and COB packaging technology.
    • 2. Best Price and High Quality
      Based on self-producing capacity and rigorous testing, QSFPTEK can provide cost-effective products with high reliability and performance at a trade price.
    • 3. Protocols
      QSFP-DD MSA, IEEE 802.3bs and 400GAUI-8/CEI-56G-VSR-PAM4
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    400G to 400G Direct Connectivity:

    QT-QSFP-DD-LR8 400G to 400G 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.

     

    QDD-400G-LR8-S compatibility test

     

     

    Comprehensive Testing

     

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

     

     

     

    Long-Haul 400G QSFP-DD Optics Contrast Table

     

    Part Number

    QT-QSFP-DD-FR4

    QT-QSFP-DD-LR4

    QT-QSFP-DD-PLR4

    QT-QSFP-DD-LR8

    QT-QSFP-DD-ER8

    Image

    Center Wavelength

    1310nm

    1310nm

    1310nm

    1310nm

    1310nm

    Connector

    Duplex LC

    Duplex LC

    MTP/MPO-12

    Duplex LC

    Duplex LC

    Cable Distance (Max.)

    2km

    10km

    10km

    10km

    40km

    Modulation

    PAM4

    PAM4

    PAM4

    PAM4

    PAM4

    Transmitter + Receiver Type

    CWDM EML + PIN

    CWDM EML + PIN

    EML + PIN

    LWDM EML + PIN

    LWDM EML + APD

    TX Power

    -3.2~3.5dBm

    -2.7~1.5dBm

    -1.9~4.8dBm

    -2.8~5.3dBm

    -0.6~5.6dBm

    Receiver Sensitivity

    <-7.3dBm

    <-9.0dBm

    <-8.2dBm

    <-9.1dBm

    <-16.1dBm (SECQ–17.5dBm)

    Power Consumption

    ≤12W

    ≤12W

    ≤12W

    ≤13W

    ≤15.4W

    Temperature

    0 to 70°C (32 to 158°F)

    0℃ to 70℃

    0℃ to 70℃

    0℃ to 70℃

    0℃ to 70℃

    Application

    Data Center

    800G to 2x400G Breakout

    Data Center

    Data Center

    400G to 4x100G Breakout

    Data Center

    Data Center

      

    Questions & Answers

    • All (11)
    • 400G QSFP-DD (2)
    • QT-QSFP-DD-DR4 (3)
    • QT-QSFP-DD-SR8 (4)
    • QT-QSFP-DD-FR4 (1)
    • QT-OSFP-400G-SR8 (1)
    • What is the difference between using 4x100 vs 8x50 of 400G QSFP-DD transceivers?
      The main difference is that the optical signal transmission method, 4x100G means transmitting optic signals in 4 channels, and 100G each channel, while 8x50G is transmitted optic signal in 8 channels, and 50G each channel.
    • What's the meaning of ''DR4''?
      ''DR'' means that the 500m transmission distance and using Singlemode fiber, ''4'' implies there refers to 4 optical channels. The 4 independent optical channels inside the DR4 modules transmitting data on separate fibers make up a total of 8 fibers(4 Tx and 4 Rx). Each of the optical channel transmission rates is 100Gb/s.
    • What type of optical cable should be used with 400G-SR8?
      The 400G-SR8 optical module employs a single-row, angled (APC) MTP16 connector to establish a connection with parallel multi-mode fiber, facilitating the linkage of 8 fiber pairs. We recommend utilizing the QSFPTEK MTP-16 APC OM4 Cable for optimal performance.

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    Video

    Resources

    • PDF Document
      QT-QSFP-DD-LR8 QDD-400G-LR8 Datasheet.pdf
    • PDF Document
      Transceiver Module User Guide.pdf
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    Dell Compatible 400GBASE-LR8 400G QSFP-DD LR8 PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module

    Compatible Dell

    Transceivers type DE-QSFP-DD-LR8 | 10km | Duplex LC/UPC

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    Satisfaction
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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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    Product image
    Dell Compatible 400GBASE-LR8 400G QSFP-DD LR8 PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module
    $3,099.00
    Compatible
    Dell
    Transceivers type
    DE-QSFP-DD-LR8 | 10km | Duplex LC/UPC
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    Product image
    Dell Compatible 400GBASE-LR8 400G QSFP-DD LR8 PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module

    Compatible Dell

    Transceivers type DE-QSFP-DD-LR8 | 10km | Duplex LC/UPC

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