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    Products / Transceivers / NVIDIA InfiniBand Transceivers / 1.6T DAC InfiniBand XDR / 202909
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    1m (3ft) NVIDIA/Mellanox MCA7K20-X001 Compatible 1600Gb/s Twin-port OSFP224 IHS/Closed Finned Top to 4x 400Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Active Copper Splitter Cable (ACC)

    Product No: 202909
    0 Reviews
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    $2,002.64
    Compatible
    Transceivers type
    12 in real-time stock, 04Nov, 2026
    Delivered in 5 business days in the U.S.
    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 both InifiniBand XDR and Ethernet in large-scale AI and HPC systems.
2. Active design operates with a maximum power consumption of 2.5W per end.
3. Supports up to 1.6T aggregate bandwidth, aligned with OSFP MSA, InfiniBand XDR.
4. Maintains stable 8×200G PAM4 electrical signaling on both host and line sides.
5. Robust cable construction delivers reliable signal integrity, flexibility, and reduced crosstalk.
    See more

    Specifications

    Nvidia/Mellanox MCA7K20-X001 Compatible 1.6T Twin-port OSFP224 IHS/Closed Finned Top to 4x 400Gb/s OSFP224 RHS/Flat Top InfiniBand Twinax DAC Cable (1m, Active, 26AWG, 0-70°C, OSFP224 to 4x OSFP224)

     

    The NVIDIA/Mellanox MCA7K20-X001 compatible OSFP224 ACC is a 1600Gb/s (Twin-port 2x800Gb/s) IHS/Closed Finned Top to 4x 400G OSFP224 RHS/Flat Top Active DAC breakout splitter copper cable. The 1.6T twin-port end uses IHS (Integrated Heat Sink) closed finned top design for use in Quantum-3 InfiniBand switch and the four 400G breakout ends adopt RHS (Riding Heat Sink) flat top structure for use in four ConnectX-8 OSFP adapters.

     

    Its main application is to connect 1600Gb/s Quantum-3 InfiniBand switch-to-four OSFP-based ConnectX-8 PCIe adapters. QSFPTEK 1.6T DAC is compliant with InfiniBand and OSFP Multi-Source Agreement (MSA). The 1.6T OSFP direct attach copper cables enable high speed and reduced power requirements for data centers at a cost-effective price. Rigorous cable testing requirement ensures cables with high performance and superior durability.

     

    Part Number QT-1.6T-O2-4O224-ACC-A1M Vendor Name QSFPTEK
    Form Factor OSFP224 IHS/Closed Finned Top to 4x OSFP224 RHS/Flat Top Max Data Rate 1600 Gbps
    Media Copper Cable Type Active DAC
    Cable Length 1m (3ft) Minimum Bend Radius 10xOD
    Jacket Material PET Wire AWG 26 AWG
    Max. Power Consumption 2.5W Per End Modulation Format 8x 200G PAM4 to Quad 2x 200G PAM4
    Power supply 3.3V Temperature 0 to 70°C (32 to 158°F)
    Protocols InfiniBand and Ethernet, OSFP MSA, IEEE802.3ck, RoHS 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

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    2m (7ft) NVIDIA/Mellanox MCA7K20-X002 Compatible 1600Gb/s Twin-port OSFP224 IHS/Closed Finned Top to 4x 400Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Active Copper Splitter Cable (ACC)

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    1.5m (5ft) NVIDIA/Mellanox MCA7K20-X01A Compatible 1600Gb/s Twin-port OSFP224 IHS/Closed Finned Top to 4x 400Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Active Copper Splitter Cable (ACC)

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    Features

    • 1. High Reliablility and Best Price
      Proudly self-producing and rigorous testing, QSFPTEK is dedicated to delivering cost-effective products with high reliability and performance at trade price.
    • 2. Wide Application Scenarios
      Ideal for ToR, adjacent racks, and short-range 1.6T InfiniBand and Ethernet connections.
    • 3. Protocols
      Compliant with IEEE 802.3ck, OSFP MSA, and InfiniBand XDR.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    1.6T XDR OSFP Switch to 4x400G OSFP NIC Breakout Connectivity:

    1.6T XDR OSFP Switch to 4x400G OSFP NIC

    Product details

    Various Switch Tests

      

    Every cable is quality tested for compatibility in the multi-brand switches environment, which guarantees flawless operations.

         

    QSPFTEK LAB All Brands Switches Show

     

    Tested in The Host Device to Prove Interoperability

      

    Every unit sold undergoes rigorous quality testing, to ensure compatibility in the target switch environment, guaranteeing perfect operation.

                                                              

    QSFPTEK Test Rack

     

    Comprehensive Testing

     

    Every cable is qualified through rigorous procedures and advanced equipment to ensure high-quality and reliable optical devices for you.

                                 

    QSFPTEK Test Devices

     

    Questions & Answers

    • All (7)
    • QT-O224-1.6T-ACC (4)
    • What applications is the 1.6T DAC high-speed cable suitable for?
      It is ideal for AI clusters, data centers, and high-performance computing environments that require ultra-high bandwidth and low-latency interconnects.
    • Does the 1.6T DAC cable work with NVIDIA Quantum-X800 Infiniband switch?
      Yes, QSFPTEK 1.6T InfiniBand XDR DACs are verified to be compatible with the NVIDIA Quantum-X800 Infiniband switch.
    • Should I choose InfiniBand 1.6T DAC or 1.6T optical transceivers?
      It depends on your transmission distance and deployment scenario. InfiniBand 1.6T DAC is ideal for short-range connections, offering lower cost, lower power consumption, and plug-and-play simplicity. In contrast, 1.6T optical transceivers are better suited for longer distances and higher flexibility, but come with higher cost and power consumption.In short, choose DAC for cost-effective short links, and optical modules for longer-distance, scalable deployments.

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    Product image
    1m (3ft) NVIDIA/Mellanox MCA7K20-X001 Compatible 1600Gb/s Twin-port OSFP224 IHS/Closed Finned Top to 4x 400Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Active Copper Splitter Cable (ACC)

    Compatible NVIDIA/Mellanox (InfiniBand/Ethernet)

    Transceivers type 1.6T to 4x 400G OSFP224 Active DAC | MCA7K20-X001 | 1m (3ft) | IHS to RHS

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    Satisfaction
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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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    Product image
    1m (3ft) NVIDIA/Mellanox MCA7K20-X001 Compatible 1600Gb/s Twin-port OSFP224 IHS/Closed Finned Top to 4x 400Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Active Copper Splitter Cable (ACC)
    $2,002.64
    Compatible
    NVIDIA/Mellanox (InfiniBand/Ethernet)
    Transceivers type
    1.6T to 4x 400G OSFP224 Active DAC | MCA7K20-X001 | 1m (3ft) | IHS to RHS
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    Product image
    1m (3ft) NVIDIA/Mellanox MCA7K20-X001 Compatible 1600Gb/s Twin-port OSFP224 IHS/Closed Finned Top to 4x 400Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Active Copper Splitter Cable (ACC)

    Compatible NVIDIA/Mellanox (InfiniBand/Ethernet)

    Transceivers type 1.6T to 4x 400G OSFP224 Active DAC | MCA7K20-X001 | 1m (3ft) | IHS to RHS

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