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    Home / Products / Transceivers / NVIDIA InfiniBand Transceivers / 800G OSFP InfiniBand NDR / 202929

    NVIDIA/Mellanox MMS4X00-NS-FLT Compatible 800GBASE-DR8 (2xDR4) Twin-port OSFP RHS/Flat Top PAM4 1310nm 100m Dual MPO-12/APC DDM SMF InfiniBand NDR Optical Transceiver Module for Liquid-cooled and DGX H100 Cedar7 Systems

    Product No: 202929
    26 Reviews
    13 Sold
    US$ 799.00
    Compatible
    Transceivers type
    6 in real-time stock, 14 Jul, 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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    Add to Cart Bulk Order Quotes 
    1. 100% verified by the original
2. Flat top design for DGX- H100 Cedar-7 or liquid-cooled
3. Support the InfiniBand NDR and Ethernet protocols
4. 8x 100G-PAM4 electrical to Dual 4x 100G-PAM4 optical Parallel
5. Maximum power consumption ≤14.5W
    See more

    Specifications

    NVIDIA/Mellanox MMS4X00-NS-FLT (980-9I30I-00NM00) Compatible 800G DR8 OSFP RHS/Flat Top PAM4 Twin-port InfiniBand NDR Optical Transceiver Module (1310nm, 100m, 2x MPO-12/APC Connectors, SMF, 0℃ to +70℃, DDM)

     

    NVIDIA/Mellanox MMS4X00-NS-FLT (980-9I30I-00NM00) compatible 800G DR8 (2x400G DR4) OSFP is an Infiniband and Ethernet twin-port transceiver module with dual MPO-12 APC connectors at 400Gb/s each. It enables the fiber link of 100m at 2x400Gb/s over single-mode fiber (SMF). With the Pulse-amplitude Modulation (PAM4) modulation, the 2xDR4 OSFP adopts 8-channels of 100G-PAM4 electrical modulation and two ports of 4-channel 100G-PAM4 optical Parallel modulation.

     

    With a flat top design, the OSFP-RHS is offered for Liquid-cooled systems and DGX H100 Cedar7 systems links. Its main application is to link the DGX H100 “Viking” CPU chassis to Cedar-7 complex to switches together up to 100 meters. 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-2DR4-RHS Vendor Name QSFPTEK
    Form Factor Twin-port OSFP-RHS/Flat Top Max Data Rate 850Gbps (8x 106.25Gbps)
    Wavelength 1310nm Distance 100m
    Connector Dual 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 ≤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 & RX Built-in DSP
    Application Liquid-cooled systems and DGX H100 Cedar7 systems links MTBF 4016064 Hours
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols OSFP MSA, IEEE 802.3ck-2022, 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

    Twin-port 800G (2x400G) OSFP IB/ETH Switch to DGX H100 GPU Systems：

    Twin-port 800G (2x400G) OSFP IB/ETH Switch to DGX H100 GPU Systems

    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  

     

     

    Select a Proper Heat Dissipation Design for Your Needs

    Finned Top vs Flat Top

    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 (14)
    • Easy to Manage (1)
    • Excellent Quality (2)
    • Good Price (4)
    • Stable (1)
    • High Reliability (2)
    • Compatibility (5)
    • Fast Delivery (3)
    • Customer Services (1)
    • Dave Alan K. United States of America
      2026-06-27

      Flat-top version works great in our liquid setup. Cheap, reliable, and I'll be back for sure.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Michell Bessie United States of America
      2026-06-24

      We tested this module in a high-utilization environment where traffic levels fluctuate significantly throughout the day. The optical measurements remained consistent, and power consumption stayed within the expected range. The module handled the workload without drawing attention to itself, which is exactly what we wanted.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Catherine Johnson United States of America
      2026-06-20

      We selected the RHS version for a high-density deployment where heat management was an important consideration. The module worked smoothly after installation, and the connection remained stable during continuous operation. The design feels suitable for newer data center environments with demanding workloads.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Evangeline Lynd United States of America
      2026-06-17

      We tested them with several hundred meters of single-mode fiber and achieved stable connectivity immediately. One thing I appreciated was how cool they operated even under sustained traffic loads. Would purchase again for future projects.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Amelia Blume United States of America
      2026-06-15

      The packaging was good; the modules were securely fixed, and there were no cosmetic issues caused during shipping. Installation was also smooth, with insertion and removal going very easily. They have been working perfectly ever since.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Amelia Blume United States of America
      2026-06-12

      We are particularly satisfied with the delivery speed; the order was shipped quickly after confirmation, without affecting the planned launch. The module passed testing on the first attempt upon arrival at the site, without any compatibility or quality issues.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Matthew United States of America
      2026-06-08

      Needed a few more 800G flat-tops for a short-reach link, and this one fit the bill perfectly. The ordering process was a breeze, shipping was fast, and the price was way better than the big-name brands. It's been working flawlessly in our test setup for a couple of weeks now. For anyone looking for a solid deal on transceivers, this is it. I'll definitely be coming back for more.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Bryan United States of America
      2026-05-27

      These have been running continuously in our lab for months without a single issue. Reliability has been better than expected.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Vince Canada
      2026-05-18

      Eh, checkout was smooth as butter. Price was a steal compared to the big names, and shipping got here quicker than I figured—which is saying something up here in Canada. Modules are humming along just fine in our liquid-cooled setup. No complaints at all. Definitely coming back for more, eh?

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Wilbur United States of America
      2026-05-13

      Installation was quick thanks to the accurate labeling. We had multiple modules to deploy, and everything was easy to identify.

      Transceivers typeMMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

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      QT-OSFP-800G-2DR4-RHS Datasheet.pdf
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    NVIDIA/Mellanox MMS4X00-NS-FLT Compatible 800GBASE-DR8 (2xDR4) Twin-port OSFP RHS/Flat Top PAM4 1310nm 100m Dual MPO-12/APC DDM SMF InfiniBand NDR Optical Transceiver Module for Liquid-cooled and DGX H100 Cedar7 Systems

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/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 MMS4X00-NS-FLT Compatible 800GBASE-DR8 (2xDR4) Twin-port OSFP RHS/Flat Top PAM4 1310nm 100m Dual MPO-12/APC DDM SMF InfiniBand NDR Optical Transceiver Module for Liquid-cooled and DGX H100 Cedar7 Systems
    US$ 799.00
    Compatible
    NVIDIA (InfiniBand/Ethernet)
    Transceivers type
    MMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top
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    NVIDIA/Mellanox MMS4X00-NS-FLT Compatible 800GBASE-DR8 (2xDR4) Twin-port OSFP RHS/Flat Top PAM4 1310nm 100m Dual MPO-12/APC DDM SMF InfiniBand NDR Optical Transceiver Module for Liquid-cooled and DGX H100 Cedar7 Systems

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4X00-NS-FLT OSFP 2DR4 | 100m | Dual MPO-12/APC | RHS/Flat Top

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