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    Products / Transceivers / Direct Attach Cables (DACs) / 400G DAC / 103728
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    0.5m (2ft) Generic Compatible 400G OSFP Finned-top Passive Twinax Direct Attach Copper (DAC) Cable

    Product No: 103728
    0 Reviews
    5 Sold
    $167.40
    Compatible
    Transceivers type
    72 in real-time stock, 24Oct, 2026
    Delivered in 5 business days in the U.S.
    5-Year Warranty 30-Day Returns 90-Day Exchange
    Warranty
    Providing industry-leading limited lifetime warranty.
    Please check our warranty policy for details.
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    Please ensure that the item you're returning is repackaged with all the cords, adapters, and documentation included when you receive it.
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    1. Tested in Host Devices for compatibility and performance	
2. Low power consumption, low crosstalk. 
3. Cost-effective 400G interconnect solution
4. Support for hot pluggable OSFP MSA, IEEE802.3ck Compliant
5. Ideal for data center short-range connection between servers, switches, etc.
    See more

    Specifications

    Generic Compatible 400G OSFP Finned Top Twinax DAC Cable (0.5m, Passive, 0-70°C, 400G OSFP to OSFP, Finned Top)

     

    The 400G OSFP passive direct attach copper twinax cables deliver high performance and bandwidth while offering a cost-effective interconnect solution. They provide reliable OSFP pluggable connectivity. Fully compliant with OSFP MSA, IEEE802.3ck, and CMIS Rev 5.0 standards. These cable assemblies are an excellent choice for 400G Ethernet deployments, such as 400G switches, servers, routers and other products application needs.

     

    Part Number QT-400G-OSFP-P0.5M Vendor Name QSFPTEK
    Connector Type OSFP to OSFP Finned Top Data Rate 400 Gbps
    Minimum Bend Radius 40.5mm Wire AWG 30AWG
    Cable Length 0.5m (2ft) Jacket Material PVC (OFNR)
    Cable Type Passive Twinax Media Copper
    Power Consumption ≤0.1W Temperature 0 to 70°C (32 to 158°F)
    Protocols IEEE 802.3ck, CMIS 5.0, OSFP MSA Modulation PAM4
    Quality Testing Program
    Optical Transceivers Testing

    Take a look at our test program to get the reliable and high-performance optical transceivers.

    Quality Certifications

    Related Products

    0.5m (2ft) Generic Compatible 400G OSFP Flat Top Passive Twinax Direct Attach Copper (DAC) Cable

    $134.10
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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 400G Ethernet connections.
    • 3. Protocols
      Compliant with IEEE802.3cd, CMIS 5.0, and OSFP MSA standards.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    400G to 400G Direct Connectivity:

    400G Direct Connectivity

    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 (5)
    • Once I place an order for my direct attach cables, how long will it take to receive them?
      QSFPTEK has been maintaining adequate stock level of kinds of Direct Attach Copper Cables in the warehouse. As long as the products you order are all in stock, we will ship them out the same day you place your order. As for some specific products or products that have a short stock, we will keep you informed ahead of time before you place your order.
    • Why should I trust QSFPTEK compatible direct attach cables?
      Exceting the price advantage we have compared to branded cables, QSFPTEK DACs also maintain the same performance and reliability. To satisfy our customers' needs of high performance, all of our DACs are tested multiple times in mainstream original brand switches in our test center before shipped out. What's more, using compatible optics in brand devices will not negatively affect manufacturers' warranty if that's your concern.
    • Can I have different compatibilities for each end of my direct attach cables?
      Yes, QSFPTEK offers customized dual compatibility solutions for direct attach cables so that you can choose compatibilities for each end individually. Just contact your sales rep. for detailed compatible customization on dual ends.

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    Resources

    • PDF Document
      QT-400G-OSFP-PxM (Finned Top) Datasheet.pdf
    Check Test Reports on Target Device
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    Product image
    0.5m (2ft) Generic Compatible 400G OSFP Finned-top Passive Twinax Direct Attach Copper (DAC) Cable

    Compatible Generic

    Transceivers type QT-400G-OSFP-P0.5M (Finned Top)

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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
    0.5m (2ft) Generic Compatible 400G OSFP Finned-top Passive Twinax Direct Attach Copper (DAC) Cable
    $167.40
    Compatible
    Generic
    Transceivers type
    QT-400G-OSFP-P0.5M (Finned Top)
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    Product image
    0.5m (2ft) Generic Compatible 400G OSFP Finned-top Passive Twinax Direct Attach Copper (DAC) Cable

    Compatible Generic

    Transceivers type QT-400G-OSFP-P0.5M (Finned Top)

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