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    Home / Products / Transceivers / NVIDIA InfiniBand Transceivers / 800G OSFP InfiniBand NDR / 102586

    NVIDIA/Mellanox MMS4X50-NM Compatible 800G 2xFR4 Twin-port OSFP IHS/Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF InfiniBand NDR Optical Transceiver Module for Linking Quantum-2 InfiniBand or Spectrum-4 Ethernet Air-Cooled Switches

    Product No: 102586
    18 Reviews
    25 Sold
    US$ 1,255.50
    Compatible
    Transceivers type
    17 in real-time stock, 11 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.
    Returns & Exchange
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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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    Add to Cart Bulk Order Quotes 
    1. 8 electrical input/output channels x 106.25G PAM4 modulation
2. Support 800G to 2x 400G-FR4 application, no breakout cables required
3. Designed with two transmitter/receiver units, dual duplex LC connectors
4. EML + PIN Laser 
5. Max power consumption ≤16.5W
    See more

    Specifications

    NVIDIA InfiniBand MMS4X50-NM Compatible 2x 400G FR4 800G OSFP IHS/Finned Top PAM4 InfiniBand NDR Optical Transceiver Module (1271nm, 1291nm, 1311nm, and 1331nm, 2km, 2x LC Connectors, SMF, 0℃ to +70℃, DDM)

     

    NVIDIA InfiniBand MMS4X50-NM Compatible 2x 400G FR4 OSFP 800G transceiver module supports a max data rate of 850Gbps. It enables the fiber link of 2km over single-mode fiber (SMF) with dual LC duplex connectors. The 800 Gigabit Ethernet signal is carried over 4 wavelengths at 1271nm, 1291nm, 1311nm, and 1331nm. QSFPTEK manufactured  2x 400GBASE FR4 OSFP complies with IEEE 802.3cu-2021, IEEE P802.3ck D3.0, OSFP MSA HW Rev 4.1, 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 FR4 OSFP achieves 800 Gigabit Ethernet through 8x 106.25 PAM4 Retimed 2x400GAUI-4 C2M electrical interface.

     

    The 800G FR4 OSFP supports Infiniband (IB) and Ethernet (EN) protocols. With a finned top design, the OSFP-IHS is used to link Quantum-2 InfiniBand or Spectrum-4 Ethernet air-cooled switches together. 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-FR4 Vendor Name QSFPTEK
    Form Factor Twin-port OSFP-IHS/Finned Top Max Data Rate 850 Gbps (8x 106.25 Gbps)
    Wavelength 1271nm, 1291nm, 1311nm and 1331nm Distance 2
    Connector Dual Duplex LC/UPC Cable Type SMF
    Transmitter Type EML Receiver Type PIN
    TX Power -3.2-4.4dBm Receiver Sensitivity < -7.2dBm
    Power Consumption ≤16.5W Modulation Format 4x 200G-PAM4 electrical to 4x 200G-PAM4 optical CWDM4 Serial Multiplexed
    Extinction Ratio >3.5dB CDR (Clock and Data Recovery) TX and RX Built-in DSP
    Application Quantum-2 InfiniBand and Spectrum-4 Ethernet air-cooled switches MTBF 4232022 Hours (@25°C, 60% CL)
    2286525 Hours (@25°C, 90% CL)
    3228908 Hours (@40°C, 60% CL)
    1630667 Hours (@40°C, 90% CL)
    2336506 Hours (@50°C, 60% CL)
    1105868 Hours (@50°C, 90% CL)
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols IEEE 802.3cu-2021, IEEE P802.3ck D3.0, OSFP MSA HW Rev 4.1, CMIS Rev 5.0 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

    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
      Complies with ICMIS Rev 4.0, IEEE 802.3bs, and OSFP MSA standard.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Scenario 1: Twin-port 800G (2x400G) OSFP IB/ETH Switches Direct Connectivity

     

    Twin-port 800G (2x400G) OSFP IB/ETH Switches Direct Connectivity

     

      

    Scenario 2: Twin-port 800G (2x400G) OSFP ETH Switch to 2x 400G QSFP-DD ETH Switches

      

    Twin-port 800G (2x400G) OSFP ETH Switch to 2x 400G QSFP-DD ETH Switches

    Product details

    100% Verified in the NVIDIA InfiniBand Environment to Ensure Interoperability

     

    Every 800G OSFP 2FR4 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-2FR4-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 (17)
    • Excellent Quality (3)
    • Shopping Experience (2)
    • Stable (1)
    • High Reliability (6)
    • High Performance (1)
    • Customer Services (2)
    • Easy to Manage (1)
    • Good Price (8)
    • Repurchase (1)
    • Compatibility (2)
    • Fast Delivery (3)
    • Maurice Aly United States of America
      2026-06-08

      Upon receiving the goods, I immediately checked the appearance, having previously encountered some issues with third-party modules. I was impressed with the workmanship of this batch of modules; the metal casing was scratch-free, the labels were clearly printed, and the interface dust protection was quite good. After going live, its performance was as reassuring as its appearance.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

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    • Sibyl Sandy United States of America
      2026-06-03

      We compared the FR4 with other options before ultimately choosing this one. The QSFPTEK engineers explained the differences between the various options, which helped us decide on this one. It's fair to say that the QSFPTEK engineers provided us with tremendous help.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Molly Kathleen United States of America
      2026-06-02

      I wasn't expecting much when we ordered these. We've had mixed experiences with third-party optics in the past, so I was prepared for at least some troubleshooting. To my surprise, everything just worked. The modules came online immediately, temperatures looked good, and we haven't touched them since installation.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Darnell Brown United States of America
      2026-06-01

      Good experience overall. We used these for a short data center interconnect project and everything worked as expected. Fast delivery, solid packaging, and no compatibility issues on deployment day.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Theodoric United States of America
      2026-05-28

      We switched to these for a longer inter-rack run and the signal margin has been excellent. Definitely a good option if you want cleaner single-mode cabling without overspending on OEM optics.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Wilbur United States of America
      2026-05-27

      The LC connectivity made cabling much cleaner in our setup compared to MPO-based optics. Links came up fast, and optical readings have stayed stable since deployment.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Oliver United Kingdom (+44)
      2026-05-14

      Works seamlessly with our Quantum‑2 InfiniBand switches. Really happy with the purchase: price was excellent, delivery was quick, customer service was responsive. Will buy again without hesitation.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Rotary Vincent United States of America
      2026-05-10

      The package showed up last Wednesday in one piece. I had a really good experience shopping here: reliable performance, nice prices, just like they said.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Beverly Harrington Argentina
      2026-05-06

      The actual deployment went smoothly, and the link stability is good; there haven't been any issues with bandwidth loss or reconnection during long periods of service operation.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Antony Rudolph United States of America
      2026-05-04

      Used these for a longer single-mode run between two rows of compute cabinets. Installation was pretty straightforward and the links stayed clean during stress testing. One less thing for the network team to worry about, which is always appreciated.

      Transceivers typeMMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

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      QT-OSFP-800G-FR4 Datasheet.pdf
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    NVIDIA/Mellanox MMS4X50-NM Compatible 800G 2xFR4 Twin-port OSFP IHS/Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF InfiniBand NDR Optical Transceiver Module for Linking Quantum-2 InfiniBand or Spectrum-4 Ethernet Air-Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/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!

    Verified Purchase

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    NVIDIA/Mellanox MMS4X50-NM Compatible 800G 2xFR4 Twin-port OSFP IHS/Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF InfiniBand NDR Optical Transceiver Module for Linking Quantum-2 InfiniBand or Spectrum-4 Ethernet Air-Cooled Switches
    US$ 1,255.50
    Compatible
    NVIDIA (InfiniBand/Ethernet)
    Transceivers type
    MMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top
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    Bulk Order Quotes
    NVIDIA/Mellanox MMS4X50-NM Compatible 800G 2xFR4 Twin-port OSFP IHS/Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF InfiniBand NDR Optical Transceiver Module for Linking Quantum-2 InfiniBand or Spectrum-4 Ethernet Air-Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4X50-NM OSFP 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Finned Top

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