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    Products / Transceivers / 400G/800G/1.6T Ethernet Transceivers / 400G QSFP-DD / 102656
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    Nokia Compatible 400G QSFP-DD SR8 PAM4 850nm 100m DOM MTP/MPO-16/APC MMF Optical Transceiver Module

    Product No: 102656
    0 Reviews
    1.0K Sold
    $189.90
    Compatible
    Transceivers type
    29 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.
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    Add to Cart Bulk Order Quotes 
    1. Tested in the host devices to prove interoperability and reliability
2. Built-in Macom DSP Chip, 8x 50G PAM4 modulation
3. Can be used for 2x 200G-SR4 and 8x 50G-SR breakout applications
4. Backward compatible with QSFP+, QSFP28 and QSFP56 modules
5. Compliant to QSFP-DD MSA, IEEE 802.3bs and 400GAUI-8/CEI-56G-VSR-PAM4
    See more

    Specifications

    Nokia Compatible 400G QSFP-DD SR8 PAM4 Optical Transceiver Module (MMF, 850nm, 100m, MTP/MPO-16 Connector, DOM)

     

    The 400G QSFP-DD SR8 optical module supports speed up to 425Gbps, short-range distance reach up to 100m over 16 parallel multimode fiber (MMF) OM4. 400GBASE SR8 QSFP-DD has an MTP/MPO-16 connector. 400G SR8 is designed based on PAM4 (Pulse Amplitude Modulation 4-level) modulation technology, DSP (Digital Signal Processing) chip, and QSFP-DD form factor. QSFPTEK 400G QSFP-DD SR8 transceiver is fully compliant with QSFP-DD Multi-Source Agreement (MSA), IEEE 802.3bs protocol, and 400GAUI-8/CEI-56G-VSR-PAM4 standard.

     

    Part Number QT-QSFP-DD-SR8 Vendor Name QSFPTEK
    Form Factor QSFP-DD Interface Type SR8
    Max Data Rate 425Gbps (8×53.125Gb/s) Wavelength 850nm
    Connector MTP/MPO-16/APC Cable Type MMF
    Max Cable Distance

    70m (over OM3)

    100m (over OM4)

    		 Modulation PAM4
    TX Power -6.5 to 4 dBm Receiver Sensitivity <-8.4 dBm
    Transmitter Type VCSEL 850nm Receiver Type PIN
    Power Consumption ≤12W 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
      Compliant with QSFP-DD MSA, IEEE 802.3bs and 400GAUI-8/CEI-56G-VSR-PAM4
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Scenario 1: 400G to 400G Direct Connectivity

    QT-QSFP-DD-SR8 Scenario 1 400G to 400G Direct Connectivity

     

     

    Scenario 2: 400G-SR8 to 2x 200G-SR4 Breakout Connectivity

    QT-QSFP-DD-SR8 Scenario 2 400G-SR8 to 2x 200G-SR4 Breakout Connectivity 

     

    Scenario 3: 400G-SR8 to 8x 50G SR Breakout Connectivity

    QT-QSFP-DD-SR8 Scenario 3 400G-SR8 to 8x 50G SR Breakout 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-SR8-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.

     

     

     

    Short to Medium Reach 400G QSFP-DD Optics Contrast Table

     

    Part Number

    QT-QSFP-DD-SR4

    QT-QSFP-DD-SR8

    QT-QSFP-DD-DR4

    QT-QSFP-DD-DR4+

    QT-QSFP-DD-FR4

    Image

    Center Wavelength

    850nm

    850nm

    1310nm

    1310nm

    1310nm

    Connector

    MTP/MPO-12

    MTP/MPO-16

    MTP/MPO-12

    MTP/MPO-12

    Duplex LC

    Cable Distance (Max.)

    100m

    100m

    500m

    2km

    2km

    Modulation

    PAM4

    PAM4

    PAM4

    PAM4

    PAM4

    Transmitter + Receiver Type

    VCSEL 850nm + PIN

    VCSEL 850nm + PIN

    EML + PIN

    EML + PIN

    CWDM EML + PIN

    TX Power

    -4.6~4.0dBm

    -6.5~4.0dBm

    -2.9~4.0dBm

    -3.1~4.0dBm

    -3.2~3.5dBm

    Receiver Sensitivity

    <-6.3dBm

    <-8.4dBm

    <-5.9dBm

    <-7.1dBm

    <-7.3dBm

    Power Consumption

    ≤8W

    ≤12W

    ≤12W

    ≤12W

    ≤12W

    Temperature

    0 to 70°C (32 to 158°F)

    0 to 70°C (32 to 158°F)

    0 to 70°C (32 to 158°F)

    0 to 70°C (32 to 158°F)

    0 to 70°C (32 to 158°F)

    Application

    Data Center

    Data Center

    400G to 2x200G Breakout

    400G to 8x50G Breakout

    Data Center

    400G to 4x100G Breakout

    800G to 2x400G Breakout

    Data Center

    400G to 4x100G Breakout

    800G to 2x400G Breakout

    Data Center

    800G to 2x400G Breakout

     

    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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    Resources

    • PDF Document
      QT-QSFP-DD-SR8 QDD-400G-SR8 Datasheet.pdf
    • PDF Document
      Transceiver Module User Guide.pdf
    Check Test Reports on Target Device
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    Nokia Compatible 400G QSFP-DD SR8 PAM4 850nm 100m DOM MTP/MPO-16/APC MMF Optical Transceiver Module

    Compatible Nokia

    Transceivers type NO-QSFP-DD-400G-SR8 | 100m | MPO-16/APC

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    Satisfaction
    Customer Gallery
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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
    Nokia Compatible 400G QSFP-DD SR8 PAM4 850nm 100m DOM MTP/MPO-16/APC MMF Optical Transceiver Module
    $189.90
    Compatible
    Nokia
    Transceivers type
    NO-QSFP-DD-400G-SR8 | 100m | MPO-16/APC
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    Product image
    Nokia Compatible 400G QSFP-DD SR8 PAM4 850nm 100m DOM MTP/MPO-16/APC MMF Optical Transceiver Module

    Compatible Nokia

    Transceivers type NO-QSFP-DD-400G-SR8 | 100m | MPO-16/APC

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