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    Home / Products / Transceivers / NVIDIA InfiniBand Transceivers / 1.6T/800G OSFP InfiniBand XDR / 103762

    NVIDIA/Mellanox MMS4A00-XM/MMS4C10 (980-9IAH0-00XM00/980-9IAU0-00XM00) Compatible 1.6T DR8 Twin-port OSFP224 RHS/Flat Top PAM4 1310nm 500m Dual MPO-12/APC SMF DDM InfiniBand XDR Optical Transceiver Module for Liquid-Cooled Switches

    Product No: 103762
    17 Reviews
    16 Sold
    US$ 2,179.00
    Compatible
    Transceivers type
    9 in real-time stock, 25 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
    Exchanges caused by the customer's reasons will not be accepted.
    Please ensure that the item you're returning is repackaged with all the cords, adapters, and documentation included when you receive it.
    Please check our Return Policy for details.
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    1. Support Ethernet and InifiniBand
2. Support 2x 800GBASE-DR4 breakout applications, no breakout cables required
3. Higher bandwidth EML transmitter and PIN PD receiver, Class 1 Laser
4. Hot-pluggable OSFP1600 form factor with dual MPO-12/APC connectors
5. Support 1.6Tb/s aggregate bit rate
6. Two wire serial Interface with digital diagnostic monitoring
7. Compliant with IEEE802.3dj D1p3:1.6TBASE-DR8 optical interface and IEEE802.3dj D1p3:1.6TAUI-8 C2M electrical interface
8. Compliant with OSFP MSA Specification Rev 5.1 RHS type 2 housing with Dual MPO-12/APC receptacle
9. Compliant with CMIS Rev 5.3
10. Complies with EU Directive 2011/65/EU (RoHS compliant)
    See more

    Specifications

    NVIDIA/Mellanox MMS4A00-XM/MMS4C10 (980-9IAH0-00XM00/980-9IAU0-00XM00) Compatible 1.6T DR8 (2x 800G DR4) OSFP224 Flat Top PAM4 Twin-port Optical Transceiver Module (1310nm, 500m, 2x MPO-12/APC Connectors, SMF, 0℃ to +70℃, DDM)

     

    NVIDIA/Mellanox MMS4A00-XM/MMS4C10 (980-9IAH0-00XM00/980-9IAU0-00XM00) compatible 1.6T OSFP224 DR8 Twin-port 2x 800G DR4 transceiver module supports a max data rate of 1600 Gbps. It enables the fiber link of 500m over single-mode fiber (SMF) with dual MPO-12 APC connectors. QSFPTEK manufactured 1.6T 2x DR4 OSFP complies with IEEE802.3dj D1p3:1.6TBASE-DR8 optical interface, IEEE802.3dj D1p3:1.6TAUI-8 C2M electrical interface, OSFP MSA Specification Rev 5.1 RHS type 2, CMIS Rev 5.3 and EU Directive 2011/65/EU (RoHS compliant).

     

    DDM (digital diagnostics monitoring) function is supported on the 1.6T fiber optic transceiver to achieve real-time operating parameters monitoring. Adopting the Pulse-amplitude Modulation (PAM4) modulation, the DR8 OSFP224 achieves 1600 Gigabit Ethernet through 8 channels 200G PAM4. 

     

    The 1.6T DR8 OSFP supports both Ethernet and InfiniBand XDR end-to-end systems. Designed for supercomputing and HPC, this 1.6T OSFP transceiver is widely used for linking two switches up to 500 meters or to connect the 1.6T end to two breakout 800G switches or adpter cards for compute servers or storage infrastructure. Besides, OSFP-RHS with flat-top design is used in Quantum-3 liquid-cooled switches.

     

    Part Number QT-1.6T-OSFP-2DR4-RHS Vendor Name QSFPTEK
    Form Factor Twin-port OSFP-RHS/Flat Top Max Data Rate 1600 Gbps
    Wavelength 1310nm Distance 500m
    Connector Dual MTP/MPO-12/APC Cable Type SMF
    Transmitter Type EML Receiver Type PIN PD
    TX Power -3.3 to 4 dBm Receiver Sensitivity < -6.3 dBm
    Packaging Technology COB (Chip on Board) Packaging Receiver Overload 4 dBm
    Power Consumption < 30W Modulation Format 8x 200G-PAM4 electrical to Dual 4x 200G-PAM4 optical Parallel
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols IEEE802.3dj D1p3, OSFP MSA Rev 5.1, CMIS Rev 5.3 and EU Directive 2011/65/EU (RoHS compliant) 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

    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 IEEE802.3dj D1p3, OSFP MSA Rev 5.1, CMIS Rev 5.3 and EU Directive 2011/65/EU.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Scenario 1: 1.6T XDR Switch to 1.6T XDR Switch Direct Connectivity:

     

    Scenario 1: 1.6T XDR Switch to 1.6T XDR Switch Direct Connectivity

     

     

    Scenario 2: 1.6T XDR Switch to 2x 800G NIC Breakout Connectivity:

     

    Scenario 2: 1.6T XDR Switch to 2x 800G NIC Breakout Connectivity

    Product details

    Twin-port Design, No Breakout Cables Required

     

    This 1.6T-OSFP-2DR4 is a hot-swappable twin-port OSFP form-factor with dual MPO-12/APC connectors. This design enables it to directly link to another twin-port optical module for 1.6T to 1.6T connectivity. Each of the two MPO-12/APC connectors can also connect to an independently single-port MPO-12/APC transceiver via a standard MTP/MPO-12 APC to MTP/MPO-12 APC OS2 SMF for 1.6T to 2x 800G breakout connectivity, without needing breakout cables.

     

    Twin-port Design, No Breakout Cables Required

     

     

    1.6T Optical Transceivers Contrast Table

     

    Part Number

    QT-1.6T-OSFP-2DR4

    QT-1.6T-OSFP-2FR4

    Image

    NVIDIA Part Number

    MMS4A00

    -

    Data Rate

    2x 800Gb/s

    2x DR4

    2x 800Gb/s

    2x FR4

    Form Factor

    Twin-port OSFP (Flat top)

    Twin-port OSFP (Flat top)

    Optical Connector

    Dual MPO-12/APC

    Dual Duplex LC/UPC

    Cable Type

    MTP/MPO-12/APC OS2 SMF

    LC UPC Duplex OS2 SMF

    Wavelength

    1310nm

    1271nm, 1291nm, 1311nm and 1331nm

    Reach

    500m

    2km

    Modulation

    8x 200G-PAM4 Electrical to Dual

    4x 200G-PAM4 Optical Parallel

    8x 200G-PAM4 Electrical to Dual 4x 200G-PAM4 Optical Multiplexed

    Transmitter + Receiver Type

    EML + PIN PD

    EML + PIN PD

    Max Power Consumption

    30W

    30W

    Application

    1.6T and 2x 800G breakout

    Ethernet and InifiniBand

    Quantum-3 liquid-cooled switches

    1.6T

    Ethernet and InifiniBand

    Quantum-3 liquid-cooled switches
     

    Questions & Answers

    • ALL (9)
    • QT-1.6T-OSFP-2DR4-IHS (1)
    • QT-1.6T-OSFP-2DR4 (6)
    • QT-OSFP-800G-2DR4 (1)
    • QT-1.6T-OSFP-2FR4 (4)

    Customer Reviews

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    • ALL (17)
    • Customer Support (2)
    • Excellent Quality (7)
    • Good Price (6)
    • Stable (2)
    • Repurchase (1)
    • High Reliability (2)
    • Compatibility (2)
    • Fast Delivery (2)
    • High Performance (1)
    • Billy United States of America
      2026-06-05

      Product specifications matched exactly what was delivered, which isn't always the case when sourcing networking hardware online.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Jamel United States of America
      2026-06-01

      Was hunting for these liquid-cooled MMS4A00 modules for a project. QSFPTEK had the best price by far. Checkout was super fast and shipping was surprisingly quick. I’ll be back for more.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Upton Yule United States of America
      2026-05-25

      We bought a couple of these 1.6T modules mainly to prepare for the next phase of our AI cluster expansion. They’re definitely not cheap products in general, but QSFPTEK made the upgrade path much easier to justify.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Keith Daniels United States of America
      2026-05-16

      Good quality, works exactly as expected on the liquid‑cooled switches: no complaints about the modules themselves.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Andrews Jerry United States of America
      2026-05-13

      Smooth purchase, fantastic price for these liquid-cooled RHS flat-top 1.6T DR8 OSFP modules. All tested good, will reorder ASAP.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Roland H. United States of America
      2026-05-11

      We've really enjoyed working with QSFPTEK again for this quarter's project! Your customer service is top-notch.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Emilia United States of America
      2026-05-08

      Working as expected in a NVIDIA switch, no issue to report so far.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Wilbur United States of America
      2026-05-04

      We've been running these 1.6T DR8 modules in a liquid-cooled setup and they've been very stable under sustained AI traffic. Installation was straightforward, and link performance has stayed consistent with no issues so far.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Josh United States of America
      2026-05-01

      Not much difference from the OEM version, but at a much better price. The most economical choice. I'll be buying more.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Benedict Kelsen United States of America
      2026-04-29

      We were mainly concerned about heat because the switches are running in a high-density air-cooled environment, but the RHS cooling structure actually made a noticeable difference. Running dual 800G breakout links to separate compute nodes worked smoothly, and we didn't see abnormal BER or link flapping during burn-in tests.

      Transceivers typeMMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

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      QT-1.6T-OSFP-2DR4-RHS Datasheet.pdf
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    NVIDIA/Mellanox MMS4A00-XM/MMS4C10 (980-9IAH0-00XM00/980-9IAU0-00XM00) Compatible 1.6T DR8 Twin-port OSFP224 RHS/Flat Top PAM4 1310nm 500m Dual MPO-12/APC SMF DDM InfiniBand XDR Optical Transceiver Module for Liquid-Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | 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 MMS4A00-XM/MMS4C10 (980-9IAH0-00XM00/980-9IAU0-00XM00) Compatible 1.6T DR8 Twin-port OSFP224 RHS/Flat Top PAM4 1310nm 500m Dual MPO-12/APC SMF DDM InfiniBand XDR Optical Transceiver Module for Liquid-Cooled Switches
    US$ 2,179.00
    Compatible
    NVIDIA (InfiniBand/Ethernet)
    Transceivers type
    MMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top
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    NVIDIA/Mellanox MMS4A00-XM/MMS4C10 (980-9IAH0-00XM00/980-9IAU0-00XM00) Compatible 1.6T DR8 Twin-port OSFP224 RHS/Flat Top PAM4 1310nm 500m Dual MPO-12/APC SMF DDM InfiniBand XDR Optical Transceiver Module for Liquid-Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4A00-XM00/MMS4C10-XM00 1.6T 2DR4 | 500m | Dual MPO-12/APC | RHS/Flat Top

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