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    Home / Products / Transceivers / NVIDIA InfiniBand Transceivers / 400G OSFP/QSFP112 InfiniBand NDR / 202892

    NVIDIA/Mellanox MMS4X00-NS400 (980-9I31N-00NM00) Compatible 400GBASE-DR4 OSFP RHS/Flat Top PAM4 1310nm 500m DDM MPO-12/APC SMF Optical Transceiver Module for InfiniBand NDR (IB) and Ethernet (ETH) Used in ConnectX-7/OSFP Adapter Cards

    Product No: 202892
    3 Reviews
    128 Sold
    US$ 599.00
    Compatible
    Transceivers type
    22 in real-time stock, 08 Jun, 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.
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    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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    1. Support both InfiniBand NDR (IB) and Ethernet (ETH)
2. Support 800G to 2x 400G and 4x 200G breakout applications
3. EML transmitter + PIN PD receiver
4. Hot-pluggable OSFP with MPO-12/APC connector
5. Max. data rate 425Gbps up to 500m over SMF
6. Max Power dissipation < 9W
    See more

    Specifications

    NVIDIA/Mellanox MMS4X00-NS400 Compatible 400GBASE-DR4 OSFP Flat Top PAM4 Optical Transceiver Module (1310nm, 500m, Single-Port MPO-12/APC Connector, SMF, 0℃ to +70℃, DDM)

     

    NVIDIA/Mellanox MMS4X00-NS400 Compatible 400GBASE-DR4 OSFP is a Flat Top (OSFP-RHS) transceiver module that supports a max data rate of 425 Gbps. It enables the fiber link of 500m over OS2 singlemode fiber (SMF) with a single 4-channel MPO-12 APC optical connector. Adopting the Pulse-amplitude Modulation (PAM4) electrical and optical modulation, the Datacenter Reach 4-channel (DR4) OSFP achieves 400 Gigabit Ethernet through 4-channels of 100G-PAM4. QSFPTEK manufactured DR4 OSFP complies with 400G InfiniBand NDR, OSFP MSA, CMIS 5.0, RoHS, IEEE 802.3ck. The DDM (digital diagnostics monitoring) function is supported on the 400G fiber optic transceiver to achieve real-time operating parameters monitoring. 

     

    The 400G DR4 OSFP-RHS supports both InfiniBand NDR (IB) and Ethernet (ETH), automatically enabled depending on the connected Host. It is designed for insertion into 400Gb/s ConnectX-7/OSFP-based PCIe-bus network cards. Its most typical application scenario is: A pair of single-port flat top 400G SR4 OSFP (MMS4X00-NS400) is independently connected to one of the connectors of the twin-port  800G 2x400G 2DR4 OSFP (MMS4X00-NS) module in a Quantum-2 InfiniBand or Spectrum-4 Ethernet switch. The MMS4X00-NS400 400G module can operate in either 400Gb/s or 200Gb/s speed modes, depending on the number of connected fiber optic cables. This allows for corresponding connectivity scenarios of 800G to 2x 400GBASE-DR4 and 4x 200GBASE-DR4 breakout applications, respectively.

     

    Part Number QT-OSFP-400G-DR4-RHS Vendor Name QSFPTEK
    Form Factor Single-port OSFP-RHS/Flat Top Max Data Rate 425Gbps (4x 106.25Gbps)
    Wavelength 1310nm Distance 500m over G.652 SMF
    Connector MTP/MPO-12/APC Cable Type SMF
    Transmitter Type EML Receiver Type PIN PD
    TX Power -2.9 to 4 dBm Receiver Sensitivity < -5.9 dBm
    Packaging Technology COB (Chip on Board) Packaging Receiver Overload 4 dBm
    Power Consumption ≤9W Modulation Format 4x 100G-PAM4 electrical to 4x 100G-PAM4 optical Parallel
    Extinction Ratio 3.5dB CDR (Clock and Data Recovery) TX & RX Built-in CDR
    Application ConnectX-7/OSFP Adapter Cards MTBF 3636364 Hours
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols 400G InfiniBand NDR, OSFP MSA, CMIS 5.0, RoHS, IEEE 802.3ck 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. Advanced Technology
      Features PAM4 modulation technology and built-in DSP chip.
    • 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 400G InfiniBand NDR, OSFP MSA, CMIS 5.0, RoHS, IEEE 802.3ck.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Scenario 1: Twin-port 800G (2x400G) OSFP IB/EN Switch to 2x 400G ConnectX-7

    Twin-port 800G (2x400G) OSFP IB/EN Switch to 2x 400G ConnectX-7

     

    Scenario 2: Twin-port 800G (2x400G) OSFP IB/EN Switch to 4x 200G ConnectX-7

    Twin-port 800G (2x400G) OSFP IB/EN Switch to 4x 200G ConnectX-7

    Product details

    100% Verified in the NVIDIA InfiniBand Environment to Ensure Interoperability

     

    Every 400G OSFP DR4 module undergoes rigorous compatibility tests and simulated transmission tests on the original NVIDIA ConnectX-7 OSFP Adapter Cards in the InfiniBand environment to ensure optics-to-device interoperability and perfect operation.

     

    QT-OSFP-400G-DR4-RHS compatibility test on NVIDIA ConnectX-7 OSFP Adapter Cards   

     

    Undergoes Comprehensive Performance Testing to Guarantee Optimal Reliability

     

    The QSFPTEK test center conducts complete testing procedures with advanced professional test equipment, including BER test, eye diagram test, Optical Spectrum test, jitter test, etc. Each module has been stringently tested by world-class test devices from Keysight and Anritsu to guarantee flawless operation and optimal reliability.

     

    Performance test devices  

    Questions & Answers

    • ALL (13)
    • QT-OSFP-400G-DR4-RHS (1)
    • QT-OSFP-400G-SR4-Flat (1)
    • 400G InfiniBand NDR (3)
    • QT-OSFP-400G-SR4 (2)
    • QT-OSFP-400G-DR4 (1)
    • QT-OSFP-400G-SR4-RHS (1)
    • QT-OSFP-400G-FR4 (1)

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    • Premium Service (1)
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    • High Performance (1)
    • Darren United States of America
      2026-04-03

      5 stars for its service and decent products, thanks to Wendy's support!

      Transceivers typeMMS4X00-NS400 OSFP DR4 | 500m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

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    • Jaroo2504 United States of America
      2026-03-16

      The package arrived today with decent package, product and service are good!

      Transceivers typeMMS4X00-NS400 OSFP DR4 | 500m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

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    • Stewart United States of America
      2026-03-12

      Installed a few of these in our ConnectX-7 setup for a short DR4 link. Solid performance so far, runs stable at 400G and the DDM readings look clean. Good option if you're building an NDR cluster without paying OEM prices.

      Transceivers typeMMS4X00-NS400 OSFP DR4 | 500m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

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    Resources

    • PDF Document
      QT-OSFP-400G-DR4-RHS Datasheet.pdf
    • PDF Document
      Transceiver Module User Guide.pdf
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    NVIDIA/Mellanox MMS4X00-NS400 (980-9I31N-00NM00) Compatible 400GBASE-DR4 OSFP RHS/Flat Top PAM4 1310nm 500m DDM MPO-12/APC SMF Optical Transceiver Module for InfiniBand NDR (IB) and Ethernet (ETH) Used in ConnectX-7/OSFP Adapter Cards

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4X00-NS400 OSFP DR4 | 500m | Single MPO-12/APC | Flat Top

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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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    NVIDIA/Mellanox MMS4X00-NS400 (980-9I31N-00NM00) Compatible 400GBASE-DR4 OSFP RHS/Flat Top PAM4 1310nm 500m DDM MPO-12/APC SMF Optical Transceiver Module for InfiniBand NDR (IB) and Ethernet (ETH) Used in ConnectX-7/OSFP Adapter Cards
    US$ 599.00
    Compatible
    NVIDIA (InfiniBand/Ethernet)
    Transceivers type
    MMS4X00-NS400 OSFP DR4 | 500m | Single MPO-12/APC | Flat Top
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    Bulk Order Quotes
    NVIDIA/Mellanox MMS4X00-NS400 (980-9I31N-00NM00) Compatible 400GBASE-DR4 OSFP RHS/Flat Top PAM4 1310nm 500m DDM MPO-12/APC SMF Optical Transceiver Module for InfiniBand NDR (IB) and Ethernet (ETH) Used in ConnectX-7/OSFP Adapter Cards

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4X00-NS400 OSFP DR4 | 500m | Single MPO-12/APC | Flat Top

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