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    Home / Products / Transceivers / NVIDIA InfiniBand Transceivers / 1.6T/800G OSFP InfiniBand XDR / 202911

    NVIDIA/Mellanox MMS4A50-XM (980-9IAS0-00XM00) Compatible 1.6T 2FR4 Twin-port OSFP224 IHS/Closed Finned Top PAM4 1310nm 2km Dual Duplex LC/UPC SMF DDM InfiniBand XDR Optical Transceiver Module for Quantum-X800 Air Cooled Switches

    Product No: 202911
    17 Reviews
    20 Sold
    US$ 2,299.00
    Compatible
    Transceivers type
    8 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.
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    1. Built-in Broadcom 3nm DSP chip
2. Closed finned top design for Quantum-X800 air-cooled switches
3. Support the XDR 800Gb/s InfiniBand protocol
4. 8x 200G-PAM4 electrical to Dual 4x 200G-PAM4 optical Serial Multiplexed
5. Maximum power consumption ≤26W
    See more

    Specifications

    NVIDIA/Mellanox MMS4A50-XM (980-9IAS0-00XM00) Compatible 1.6T 2x 800G FR4 OSFP224 IHS/Closed Finned Top PAM4 Twin-port Optical Transceiver Module (1310nm, 2km, 2x Duplex LC/UPC Connectors, SMF, 0℃ to +70℃, DDM)

     

    NVIDIA/Mellanox MMS4A50-XM (980-9IAS0-00XM00) compatible 1.6T OSFP224 2x FR4 is an Infiniband twin-port transceiver module with dual duplex LC/UPC connectors at 800Gb/s each. It enables the fiber link of 2km at 2x800Gb/s over single-mode fiber (SMF). With the Pulse-amplitude Modulation (PAM4) modulation, the Fixed Reach 4-channel (FR4) OSFP adopts 8-channels of 200G-PAM4 electrical modulation and two ports of 4-channel 200G-PAM4 optical Serial Multiplexed modulation.

     

    The 1.6T 2FR4 OSFP224 supports InfiniBand XDR end-to-end systems. Designed for supercomputing and HPC, the main application of this 1.6T OSFP transceiver is to link two 1.6T (2x800G) switches (i.e. Quantum-X800 Q3200-RA, Q3400-RA) together up to 2 kilometers. Its OSFP-IHS/Closed Finned Top structure is designed for Quantum-3 Quantum-X800 air-cooled switches.

     

    Part Number QT-1.6T-OSFP-2FR4-IHS Vendor Name QSFPTEK
    Form Factor Twin-port OSFP-IHS/Closed Finned Top Max Data Rate 1600 Gbps
    Wavelength 1271nm,1291nm,1311nm,1331nm Distance 2km
    Connector Dual Duplex LC/UPC Cable Type SMF
    Transmitter Type EML Receiver Type PIN PD
    TX Power -2.2 to 4.9 dBm Receiver Sensitivity < -6.2 dBm
    Packaging Technology COB (Chip on Board) Packaging Receiver Overload 4.9 dBm
    Power Consumption ≤26W Modulation Format 8x 200G-PAM4 electrical to Dual 4x 200G-PAM4 optical Serial Multiplexed
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols OSFP MSA, CMIS 5.1, IEEE P802.3dj, OIF 224G-VSR 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 OSFP MSA, CMIS 5.1, IEEE P802.3dj, OIF 224G-VSR.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Twin-port 1.6T (2x 800G) XDR Switches Direct Connectivity：

    Twin-port 1.6T (2x 800G) XDR Switches Direct Connectivity

    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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    5 stars

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    • ALL (17)
    • Premium Service (1)
    • Customer Support (2)
    • Excellent Quality (3)
    • Good Price (4)
    • Shopping Experience (4)
    • Stable (1)
    • Repurchase (3)
    • High Reliability (3)
    • Fast Delivery (3)
    • Compatibility (3)
    • High Performance (1)
    • Adam United States of America
      2026-06-05

      The packaging protected the modules well during international shipping. Everything arrived in perfect condition and ready for deployment.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Chris United States of America
      2026-06-02

      I had to get my new building connected to the main network properly. Picked up this 202911 1.6T 2FR4 twin-port module. I didn't buy a ton of gear, just the essentials, but the customer service didn't treat me like a small fry. It’s been running rock solid for weeks. Props to the team for the good vibes.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • James F. United States of America
      2026-05-25

      Locked solid links across our Quantum-X800 switch fabric. Only small letdown: shipping got stuck at regional USPS hub for 3 extra business days due to carrier backlog, not seller’s fault. Aside from the minor delivery delay, product hits every spec mark, will keep purchasing for our long-haul rack interconnect projects.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Vita United States of America
      2026-05-19

      Shipping was quick, and it showed up right on time. All in all, the bang for your buck is just outstanding.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Rohit Kumar India
      2026-05-15

      Main yahan report kar raha hoon ki mera last project bina kisi issue ke complete ho gaya. Nice job, mere friends!

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Oliver A. United States of America
      2026-05-09

      A great value at such a price. I will buy more.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Sinclair United States of America
      2026-05-06

      Shipping was quick and everything arrived well protected. The modules feel solid in build quality, and installation went smoothly without any compatibility issues. So far, performance has been stable under continuous load.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • JNAE United Kingdom
      2026-05-03

      Bought the 1.6T twin-port (202911) for my Q3200-RA. Big thanks to Wendy, who confirmed the product lists for 2x800G breakout solution before I ordered. Links came up instantly and zero drama since. Buying from QSFPTEK for years, won‘t be the last.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Lamp Justin United States of America
      2026-04-21

      Third time buying from QSFPTEK. Their 1.6T OSFP modules are legit for the price and quality. My whole networking crew is switching over. Highly recommend.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

    • Cedric United States of America
      2026-04-16

      The modules arrived quickly, build quality was excellent, and link performance has been very stable in our Quantum-X800 deployment. Customer support also responded fast to our questions.

      Transceivers typeMMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

      CompatibleNVIDIA (InfiniBand/Ethernet)

      Verified Purchase

      Helpful

      0

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      QT-1.6T-OSFP-2FR4-IHS Datasheet.pdf
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    NVIDIA/Mellanox MMS4A50-XM (980-9IAS0-00XM00) Compatible 1.6T 2FR4 Twin-port OSFP224 IHS/Closed Finned Top PAM4 1310nm 2km Dual Duplex LC/UPC SMF DDM InfiniBand XDR Optical Transceiver Module for Quantum-X800 Air Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | 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!

    Verified Purchase

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    8

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    NVIDIA/Mellanox MMS4A50-XM (980-9IAS0-00XM00) Compatible 1.6T 2FR4 Twin-port OSFP224 IHS/Closed Finned Top PAM4 1310nm 2km Dual Duplex LC/UPC SMF DDM InfiniBand XDR Optical Transceiver Module for Quantum-X800 Air Cooled Switches
    US$ 2,299.00
    Compatible
    NVIDIA (InfiniBand/Ethernet)
    Transceivers type
    MMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top
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    Bulk Order Quotes
    NVIDIA/Mellanox MMS4A50-XM (980-9IAS0-00XM00) Compatible 1.6T 2FR4 Twin-port OSFP224 IHS/Closed Finned Top PAM4 1310nm 2km Dual Duplex LC/UPC SMF DDM InfiniBand XDR Optical Transceiver Module for Quantum-X800 Air Cooled Switches

    Compatible NVIDIA (InfiniBand/Ethernet)

    Transceivers type MMS4A50-XM (980-9IAS0-00XM00) 1.6T 2FR4 | 2km | Dual Duplex LC/UPC | IHS/Closed Finned Top

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