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    Home / Products / Transceivers / NVIDIA InfiniBand Transceivers / 400G OSFP/QSFP112 InfiniBand NDR / 103833

    NVIDIA/Mellanox MMA1Z00-NS400 (980-9I693-00NS00) Compatible 400GBASE-SR4 QSFP112 RHS/Flat Top PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module Support both Ethernet and InfiniBand NDR Used in ConnectX-7 Adapters or BlueField-3 DPUs

    Product No: 103833
    7 Reviews
    198 Sold
    US$ 459.00
    Compatible
    Transceivers type
    28 in real-time stock, 13 Aug, 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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    1. Support both InfiniBand NDR (IB) and Ethernet (ETH)
2. Support 800G to 2x 400G and 4x 200G breakout applications
3. Built-in Broadcom DSP chip
4. Max power consumption ≤8.5W
5. VCSEL transmitter and PIN PD receiver
    See more

    Specifications

    NVIDIA/Mellanox MMA1Z00-NS400 Compatible 400G QSFP112 SR4 PAM4 Optical Transceiver Module (850nm, 50m, MPO-12 APC Connectors, MMF, 0℃ to +70℃, DOM)

     

    The NVIDIA/Mellanox MMA1Z00-NS400 Compatible 400GBASE-SR4 QSFP112 transceiver module supports a max data rate of 425Gbps. It enables the fiber link of 50m over MMF with MPO-12 APC connectors. QSFPTEK manufactured SR4 QSFP112 complies with 400G InfiniBand NDR, QSFP112 MSA, CMIS Rev 5.0, RoHS, IEEE 802.3df-2024 4x100GBASE-SR1/2x200GBASE-SR2/1x400GBASE-SR4 optical interface and 4x100GAUI-1/2x200GAUI-2/1x400GAUI-4 C2M electrical interface. DDM function is supported on the 400G fiber optic transceiver to achieve real-time operating parameters monitoring. Adopting the Pulse-amplitude Modulation (PAM4) electrical and optical modulation, the Short Reach 4-channel (SR4) QSFP112 achieves 400 Gigabit Ethernet through 4-channels of 100G-PAM4.

     

    This 400G SR4 QSFP112 supports both InfiniBand NDR (IB) and Ethernet (ETH). While not for use in switches, it is designed for insertion into 400Gb/s ConnectX-7/QSFP112-based PCIe-bus network cards or BlueField-3/QSFP112 Data Processing Units (DPUs) to twin-port 800G transceivers in 2x400G IB/EN switches. Its most typical application scenario is: A pair of single-port flat top 400G SR4 QSFP112 (MMA1Z00-NS400) is independently connected to one of the connectors of the twin-port  800G 2x400G 2SR4 OSFP (MMA4Z00-NS) module in a Quantum-2 InfiniBand or Spectrum-4 Ethernet switch. The MMA1Z00-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-SR4 and 4x 200GBASE-SR4 breakout applications, respectively.

     

    Part Number QT-Q112-400G-SR4 Vendor Name QSFPTEK
    Form Factor Single-port QSFP112-RHS/Flat Top Max Data Rate 425 Gbps (4x 106.25 Gbps)
    Wavelength 850nm Distance 50m
    Connector MPO-12/APC Cable Type MMF
    Transmitter Type VCSEL Receiver Type PIN PD
    TX Power -4.6 to +4dBm Receiver Sensitivity < -6.3dBm
    Packaging Technology COB (Chip on Board) Packaging Receiver Overload 4 dBm
    Power Consumption ≤8.5W Modulation Format 4x 100G-PAM4 electrical to 4x 100G-PAM4 optical Parallel
    Extinction Ratio >2.5dB CDR (Clock and Data Recovery) TX and RX Built-in CDR
    Application ConnectX-7 Adapters or BlueField-3 DPUs MTBF 1420071 Hours (@40°C, 90% CL)
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols QSFP112 MSA Specification Rev2.0, IEEE 802.3df-2024 and CMIS Rev5.0 Warranty 5 Years
    Quality Certifications

    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
      QSFP112 MSA Specification Rev2.0, IEEE 802.3df-2024 and CMIS Rev5.0 standard
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Scenario 1: Twin-port 2x400G OSFP IB/EN Switch to 2x 400G ConnectX-7/QSFP112 or BlueField-3/QSFP112 DPUs Connectivity

    Twin-port 2x400G OSFP IB/EN Switch to 2x 400G ConnectX-7/QSFP112 or BlueField-3/QSFP112 DPUs Connectivity

     

     

    Scenario 2: Twin-port 2x400G OSFP IB/EN Switch to 4x 200G ConnectX-7/QSFP112 or BlueField-3/QSFP112 DPUs Connectivity

    Twin-port 2x400G OSFP IB/EN Switch to 4x 200G ConnectX-7/QSFP112 or BlueField-3/QSFP112 DPUs Connectivity


     

    Product details

     

    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)

    Customer Reviews

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    • ALL (7)
    • Premium Service (1)
    • Excellent Quality (1)
    • Good Price (3)
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    • Stable (1)
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    • High Performance (1)
    • Cliff Ward United States of America
      2026-08-10

      In our high-density rack environment, saving space and keeping cable management simple are important. This module helped us maintain a cleaner layout and made future port expansion easier to plan.

      Transceivers typeMMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)

      Verified Purchase

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      0

    • Kitty Veblen United States of America
      2026-08-06

      We selected this module for a high-density switch environment where space efficiency was an important consideration. It helped us maximize available ports while keeping the overall network design clean and organized.

      Transceivers typeMMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Adam Eisan United States of America
      2026-05-05

      Cheap, fast, works. That’s it. Got the QSFP112 SR4 for my BlueField-3 DPU, slapped it in, and it’s been running 24/7 without a single hiccup. Will definitely buy again.

      Transceivers typeMMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Mark United States of America
      2026-04-10

      Using this with our ConnectX-7 cards in a small AI cluster, and it's been rock solid so far. Plug-and-play with no compatibility issues, and throughput is right where we expect it. Great option if you're trying to keep costs down without sacrificing performance.

      Transceivers typeMMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Len United States of America
      2026-04-03

      Bought this for a small lab connecting a few high-speed switches, wasn't expecting much for the price. But it's actually really solid. Worked immediately with our Mellanox equipment, no compatibility issues, and the link has stayed stable under load for weeks.

      Transceivers typeMMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Emanuel United States of America
      2026-04-02

      I need an optical module that can be matched with ConnectX-7 Adapters. I searched on Google and found that QSFPTEK offers the same module at a more affordable price. I've been using it for a while now and it seems to be working fine.

      Transceivers typeMMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Lionel United States of America
      2026-03-27

      Used this for our small AI cluster (GPU nodes + switches), plug and play. Exactly what you need for this speed. Flexible enough for tight racks, no signal issues yet. Will definitely order more for expansion.

      Transceivers typeMMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

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      QT-Q112-400G-SR4 Datasheet.pdf
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    NVIDIA/Mellanox MMA1Z00-NS400 (980-9I693-00NS00) Compatible 400GBASE-SR4 QSFP112 RHS/Flat Top PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module Support both Ethernet and InfiniBand NDR Used in ConnectX-7 Adapters or BlueField-3 DPUs

    Compatible NVIDIA/Mellanox (InfiniBand/Ethernet)

    Transceivers type MMA1Z00-NS400 QSFP112 SR4 | 50m | 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!

    Verified Purchase

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    NVIDIA/Mellanox MMA1Z00-NS400 (980-9I693-00NS00) Compatible 400GBASE-SR4 QSFP112 RHS/Flat Top PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module Support both Ethernet and InfiniBand NDR Used in ConnectX-7 Adapters or BlueField-3 DPUs
    US$ 459.00
    Compatible
    NVIDIA/Mellanox (InfiniBand/Ethernet)
    Transceivers type
    MMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top
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    Bulk Order Quotes
    NVIDIA/Mellanox MMA1Z00-NS400 (980-9I693-00NS00) Compatible 400GBASE-SR4 QSFP112 RHS/Flat Top PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module Support both Ethernet and InfiniBand NDR Used in ConnectX-7 Adapters or BlueField-3 DPUs

    Compatible NVIDIA/Mellanox (InfiniBand/Ethernet)

    Transceivers type MMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top

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