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    Home / Products / Transceivers / NVIDIA InfiniBand Transceivers / 800G OSFP InfiniBand NDR / 203119

    NVIDIA/Mellanox Compatible 800GBASE-LR8 (2xLR4) Twin-port OSFP IHS/Closed Finned Top PAM4 1310nm 10km Dual MPO-12/APC DDM SMF InfiniBand NDR Optical Transceiver Module for Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches

    Product No: 203119
    6 Reviews
    16 Sold
    US$ 1,135.90
    Compatible
    Transceivers type
    28 in real-time stock, 24 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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    1. 100% verified by NVIDIA QM9700/9790 for compatibility
2. Support InfiniBand NDR (IB) and Ethernet (ETH)
3. Closed finned top design for IB Quantum-2 or ETH Spectrum-4 air-cooled switches
4. Up to 10km over SMF with KP4 FEC
5. 8x 100G-PAM4 electrical to Dual 4x 100G-PAM4 optical parallel
6. Maximum power consumption <14.5W
    See more

    Specifications

    NVIDIA/Mellanox Compatible 800GBASE-LR8 (2xLR4) OSFP IHS/Closed Finned Top PAM4 InfiniBand NDR Optical Transceiver Module (1310nm, 10km, 2x MPO-12/APC Connectors, SMF, 0℃ to +70℃, DDM)

     

    NVIDIA/Mellanox compatible 800G LR8 OSFP is an InfiniBand NDR and Ethernet optical transceiver module with dual MPO-12/APC connectors. It enables the fiber link of 10km at 850Gb/s over MTP/MPO single-mode fiber (SMF). With the Pulse-amplitude Modulation (PAM4) modulation, the long reach 8-channel (LR8) OSFP adopts 8-channels of 100G-PAM4 electrical to dual 4x 100G-PAM4 optical parallel modulation.

     

    With a closed finned top design, the OSFP-IHS is offered for InfiniBand Quantum-2 or Ethernet Spectrum-4 air-cooled switches. Its main application is to link two switches together up to 10km meters. QSFPTEK NVIDIA Ethernet compatible optics are 100% tested in NVIDIA InfiniBand and Ethernet host devices, ideal for NVIDIA end-to-end InfiniBand NDR or Ethernet systems.

     

    Part Number QT-OSFP-800G-LR8-IHS Vendor Name QSFPTEK
    Form Factor Twin-port OSFP-IHS/Closed Finned Top Max Data Rate 850Gbps (8x 106.25Gbps)
    Wavelength 1310nm Distance 10km
    Connector Dual MPO-12/APC Cable Type SMF
    Transmitter Type EML Receiver Type PIN PD
    TX Power -1.4 to 4.5 dBm Receiver Sensitivity < -7.7 dBm
    Packaging Technology COB (Chip on Board) Packaging Receiver Overload 4.5 dBm
    Power Consumption <14.5W Modulation Format
    8x 100G-PAM4 electrical to Dual 4x 100G-PAM4 optical parallel
    Extinction Ratio >3.5dB CDR (Clock and Data Recovery) TX and RX Built-in CDR
    Application Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches MTBF 3289474 Hours
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols OSFP MSA, IEEE 802.3ck, 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

     

    Product details

    100% Verified in the NVIDIA InfiniBand Environment to Ensure Interoperability

     

    Every 800G OSFP LR8 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-LR8-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  

     

    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 (6)
    • Plug-and-Play (1)
    • DDM Monitoring (1)
    • Stable (2)
    • Repurchase (1)
    • Fast Delivery (1)
    • Compatibility (1)
    • High Performance (1)
    • Customer Services (1)
    • Baron Gibson United States of America
      2026-06-24

      Selected this LR8 module for a project that required longer fiber runs between network segments. The LC interface made installation convenient since it matched our existing cabling infrastructure. Being able to achieve 800G connectivity without redesigning the fiber plant was a major advantage for this deployment.

      Transceivers typeOSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

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    • Tom United States of America
      2026-06-20

      We needed optics for a longer-reach project, and these performed exactly as advertised. No signal issues and plenty of margin on the links.

      Transceivers typeOSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Una Kent United States of America
      2026-06-17

      Needed a long-reach 800G solution between two buildings on campus and decided to try this LR8 module. Optical power levels were healthy, and performance has been rock solid since deployment. I'm very satisfied with the result.

      Transceivers typeOSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Janice Carnegie United States of America
      2026-06-15

      Many products perform well when first installed, but the real differences become apparent after a few months. This LR8 has been running continuously for some time, surviving peak business periods and maintenance windows, and its current condition is similar to when it was first launched. There have been no significant fluctuations in optical power or degradation in link quality. From a long-term usage perspective, this is something I'm quite satisfied with.

      Transceivers typeOSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Amelia Blume United States of America
      2026-06-09

      Our primary requirement for optical modules is reliability. Since LR8 went live, it has been running very stably; services haven't experienced issues due to link problems, and the monitoring system rarely records any anomalies. This is quite good for a critical connection.

      Transceivers typeOSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Aria# United States of America
      2026-04-07

      Huge shoutout to the sales rep, Wendy, who helped me out with this order! I was a bit worried about whether these would play nice with our specific NVIDIA setup, but she walked me through the compatibility options and made sure everything was coded perfectly before shipping. Received them, plugged them in, and they work flawlessly. Awesome customer service and great product!

      Transceivers typeOSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

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    Resources

    • PDF Document
      QT-OSFP-800G-LR8-IHS Datasheet.pdf
    • PDF Document
      Transceiver Module User Guide.pdf
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    NVIDIA/Mellanox Compatible 800GBASE-LR8 (2xLR4) Twin-port OSFP IHS/Closed Finned Top PAM4 1310nm 10km Dual MPO-12/APC DDM SMF InfiniBand NDR Optical Transceiver Module for Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type OSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed 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 Compatible 800GBASE-LR8 (2xLR4) Twin-port OSFP IHS/Closed Finned Top PAM4 1310nm 10km Dual MPO-12/APC DDM SMF InfiniBand NDR Optical Transceiver Module for Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches
    US$ 1,135.90
    Compatible
    NVIDIA (InfiniBand/Ethernet)
    Transceivers type
    OSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed Finned Top
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    Bulk Order Quotes
    NVIDIA/Mellanox Compatible 800GBASE-LR8 (2xLR4) Twin-port OSFP IHS/Closed Finned Top PAM4 1310nm 10km Dual MPO-12/APC DDM SMF InfiniBand NDR Optical Transceiver Module for Quantum-2 InfiniBand and Spectrum-4 Ethernet Air-Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type OSFP LR8 | 10km | Dual MPO-12/APC | IHS/Closed Finned Top

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