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    Home / Products / Transceivers / NVIDIA InfiniBand Transceivers / 800G OSFP InfiniBand NDR / 202922

    NVIDIA/Mellanox MMA4Z00-NS Compatible 800GBASE-SR8 (2xSR4) Twin-port OSFP IHS/Open Finned Top PAM4 850nm 50m Dual MPO-12/APC DDM MMF InfiniBand NDR Optical Transceiver Module for Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches

    Product No: 202922
    50 Reviews
    3.5K Sold
    US$ 599.00
    Compatible
    Transceivers type
    52 in real-time stock, 17 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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    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. Built-in Broadcom DSP chip
2. Support InfiniBand NDR (IB) and Ethernet (ETH)
3. Used in Quantum-2 air-cooled switch, Support breakout to 2/4 ConnectX-7/BlueField-3
4. Power consumption < 14W
5. Hot-pluggable OSFP with dual MPO-12/APC connectors
    See more

    Specifications

    NVIDIA/Mellanox MMA4Z00-NS Compatible 800GBASE-SR8 (2x400G SR4) OSFP IHS/Open Finned Top PAM4 InfiniBand NDR Optical Transceiver Module (850nm, 50m, 2x MPO-12/APC Connectors, MMF, 0℃ to +70℃, DDM)

     

    NVIDIA/Mellanox MMA4Z00-NS Compatible 800G OSFP SR8 (2x400G SR4) transceiver module supports a max data rate of 850Gbps. It enables the fiber link of 50m over multi-mode fiber (MMF) with dual MPO-12 APC connectors. QSFPTEK manufactured 800GBASE-SR8 (2x 400GBASE SR4) OSFP complies with IEEE 802.3-2022 8x100GBASE-VR1 optical interface, IEEE 802.3ck-2022 8x100GAUI-1 C2M electrical interface, OSFP MSA Specification Rev 5.0 Type 2, CMIS Rev 5.0.

     

    DDM (digital diagnostics monitoring) function is supported on the 800G fiber optic transceiver to achieve real-time operating parameters monitoring. Adopting the Pulse-amplitude Modulation (PAM4) modulation, the SR8 OSFP achieves 800 Gigabit Ethernet through 8x 106.25 PAM4. The 800G SR8 OSFP supports Infiniband (IB) and Ethernet (ETH) protocols. With an open finned top design, the OSFP-IHS is used in Quantum-2 InfiniBand and Spectrum-4 Ethernet air-cooled switches to switches, ConnectX-7 and BlueField-3 DPUs. QSFPTEK NVIDIA InfiniBand compatible optics are 100% tested in NVIDIA InfiniBand host devices, ideal for InfiniBand NDR end-to-end systems

     

    Part Number QT-OSFP-800G-2VR4-IHS Vendor Name QSFPTEK
    Form Factor Twin-port OSFP-IHS/Open Finned Top Max Data Rate 850Gbps (8x 106.25Gbps)
    Wavelength 850nm Distance 50m
    Connector Dual MTP/MPO-12/APC Cable Type MMF
    Transmitter Type VCSEL Receiver Type PIN PD
    TX Power -4.6 to 4 dBm Receiver Sensitivity < -6.4 dBm
    Packaging Technology COB (Chip on Board) Packaging Receiver Overload 4 dBm
    Power Consumption < 14W Modulation Format 8x 100G-PAM4 electrical to Dual 4x 100G-PAM4 optical Parallel
    Extinction Ratio ＞2.5dB CDR (Clock and Data Recovery) TX and RX Built-in CDR
    Application Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches MTBF 1667165 Hours (@55°C, 60% CL)
    1117873 Hours (@55°C, 90% CL)
    970038 Hours (@70°C, 60% CL)
    650429 Hours (@70°C, 90% CL)
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols IEEE 802.3-2022, IEEE 802.3ck-2022, OSFP MSA, CMIS Rev 5.0 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

    Applications

    Scenario 1: Twin-port 800G (2x400G) OSFP IB/ETH Switches Direct Connectivity or to Two Switches at 400Gb/s

    Twin-port 800G (2x400G) OSFP IB/ETH Switches Direct Connectivity or to Two Switches at 400Gb/s

    Scenario 2: Twin-port 800G (2x400G) OSFP IB/ETH Switch to 2x400G ConnectX-7 and/or BlueField-3

    Twin-port 800G (2x400G) OSFP IB/ETH Switch to 2x400G ConnectX-7 and/or BlueField-3

     

     

    Scenario 3: Twin-port 800G (2x400G) OSFP IB/ETH Switch to 4x 200G ConnectX-7 and/or BlueField-3

    Twin-port 800G (2x400G) OSFP IB/ETH Switch to 4x 200G ConnectX-7 and/or BlueField-3


     

    Product details

    100% Verified in the NVIDIA InfiniBand Environment to Ensure Interoperability

     

    Every 800G OSFP 2SR4 module undergoes rigorous compatibility tests and simulated transmission tests on the original NVIDIA Quantum-2 switches in the InfiniBand environment to ensure optics-to-device interoperability and perfect operation.

     

    QT-OSFP-800G-2VR4-IHS compatibility test on NVIDIA QM9700   

     

    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  

     

     

    Select a Proper Heat Dissipation Design for Your Needs

    Open Finned Top vs Closed Finned Top vs Flat Top

    Open Finned Top 800G OSFP optics with Integrated Heat Sink (IHS) design are used only in Quantum-2 InfiniBand or Spectrum-4 Ethernet air-cooled switches. Closed Finned Top 800G OSFP optics with Integrated Heat Sink (IHS) design are used for both Quantum-2 InfiniBand or Spectrum-4 Ethernet air-cooled and liquid-cooled systems. Flat top 800G OSFP optics with Riding Heat Sink (RHS) design are used in Liquid-cooled and DGX H100 Cedar7 Systems.

    Questions & Answers

    • ALL (15)
    • QT-OSFP-800G-2SR4 (2)
    • QT-OSFP-800G-2VR4 (4)
    • QT-OSFP-800G-2FR4 (2)
    • QT-OSFP-800G-2DR4 (1)
    • 800G InfiniBand NDR (4)

    Customer Reviews

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    • ALL (35)
    • Excellent Quality (2)
    • Shopping Experience (3)
    • Stable (2)
    • DDM Monitoring (1)
    • High Reliability (2)
    • High Performance (9)
    • Customer Services (7)
    • Good Price (5)
    • Repurchase (2)
    • Fast Delivery (3)
    • Compatibility (8)
    • Jaydev R. United States of America
      2026-06-03

      Got these 800G SR8 modules for our Quantum-2 switch, and they locked right in. No issues at all. Liking this brand more every time..

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Joe George United States of America
      2026-05-30

      This is a great item at a good price. Works as it should and has been reliable! Will buy again for next project build.

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Ulysses Haydn United States of America
      2026-05-27

      I specifically chose the open finned version because our racks rely heavily on front-to-back airflow. After a few weeks running AI workloads almost nonstop, module temps stayed more stable than some older optics we had.

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Urban United States of America
      2026-05-27

      Shipping was quicker than expected and everything arrived well packed. Saved us time during a tight deployment window.

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Hamiltion Stone United States of America
      2026-05-26

      We installed these in a fairly crowded AI rack where airflow isn’t exactly ideal, but temperatures stayed pretty consistent even during long training jobs. Also liked that the modules seated firmly in the ports without needing to force anything.

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Rory Edison Algeria
      2026-05-25

      The open finned top design seems to help airflow a bit in our setup.

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Alex United Kingdom
      2026-05-22

      Tested, they work, I'm keeping these for a rainy day when the next project comes. Good value 800G OSFP optics

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Alexei United States of America
      2026-05-18

      Smooth buying experience and super fair pricing. Shipped quickly, worked straight out of the box. Will definitely purchase again for our next phase expansion.

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Julie Herty United States of America
      2026-05-15

      We used these with an AI training cluster connected through NVIDIA Quantum-2 InfiniBand switch switches and OM4 fiber. First impression was that the modules feel well built — solid housing, clean connector finish, nothing loose or cheap feeling. Shipping was also faster than expected, arrived in 3 days and everything was packed individually with proper protection. The value here is honestly pretty good.

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Colin Ellen United States of America
      2026-05-13

      We previously used QSFPTEK 100G and 400G modules in our data center, so moving to their 800G SR8 was a natural step. Installation was straightforward, and performance matched our expectations. The MPO-12/APC interface lined up perfectly with our existing infrastructure, which saved us from reworking the cabling.

      Transceivers typeMMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    Video

    Resources

    • PDF Document
      QT-OSFP-800G-2VR4-IHS Open Finned Top Datasheet.pdf
    • PDF Document
      Transceiver Module User Guide.pdf
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    NVIDIA/Mellanox MMA4Z00-NS Compatible 800GBASE-SR8 (2xSR4) Twin-port OSFP IHS/Open Finned Top PAM4 850nm 50m Dual MPO-12/APC DDM MMF InfiniBand NDR Optical Transceiver Module for Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned 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 MMA4Z00-NS Compatible 800GBASE-SR8 (2xSR4) Twin-port OSFP IHS/Open Finned Top PAM4 850nm 50m Dual MPO-12/APC DDM MMF InfiniBand NDR Optical Transceiver Module for Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches
    US$ 599.00
    Compatible
    NVIDIA (InfiniBand/Ethernet)
    Transceivers type
    MMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top
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    Bulk Order Quotes
    NVIDIA/Mellanox MMA4Z00-NS Compatible 800GBASE-SR8 (2xSR4) Twin-port OSFP IHS/Open Finned Top PAM4 850nm 50m Dual MPO-12/APC DDM MMF InfiniBand NDR Optical Transceiver Module for Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMA4Z00-NS OSFP 2SR4 | 50m | Dual MPO-12/APC | IHS/Open Finned Top

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