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China 400G QSFP-DD DAC Cable Factory - High-Speed Direct Attach Copper Cable Supplier for Data Centers
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China 400G QSFP-DD DAC Cable Factory - High-Speed Direct Attach Copper Cable Supplier for Data Centers

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Introducing the ETU-LINK 400G QSFP-DD DAC, an advanced direct attach copper cable specifically engineered to connect two 400G QSFP-DD ports. As a leading choice among China suppliers, this cable provides a cost-effective, energy-efficient, and low-latency solution for short-distance data transmission within data centers. Its unique breakout mode feature allows you to split a single 400G QSFP-DD port into four 100G QSFP ports, significantly enhancing flexibility in data transmission. Manufactured in our state-of-the-art factory, this cable is ideal for meeting the high-speed and large-capacity data transmission requirements of modern data centers, simplifying cabling structures while ensuring improved reliability and stability for your networking needs.

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    Product Detail

    Ordering Information

    P/N Description Data Sheet Data Rate Cable Type Cable Diameter Cable Length Temp.(℃)
    EDQD400-1 QSFP-DD TO QSFP-DD DOWNLOAD 400G Passive Cable 30AWG 1M 0~70
    EDQD400-2-26 QSFP-DD TO QSFP-DD DOWNLOAD 400G Passive Cable 26AWG 2M 0~70
    EDQD400-2.5-26 QSFP-DD TO QSFP-DD DOWNLOAD 400G Passive Cable 26AWG 2.5M 0~70

    Frequently Asked Questions

    What is the maximum transmission distance for these 400G QSFP-DD passive copper cables?
    The maximum length for these passive copper direct attach cables (DAC) ranges from 1 meter to 2.5 meters. They are optimized for short-reach, high-speed interconnects within server racks or between adjacent racks.
    Why do different cable lengths use different wire gauges (30AWG vs 26AWG)?
    Thicker wire (26AWG) has lower signal attenuation, which is necessary to maintain signal integrity over longer distances such as 2M and 2.5M. Shorter cables (1M) can use thinner wire (30AWG), allowing for increased flexibility and easier routing.
    Do these 400G QSFP-DD DAC cables require external power to operate?
    No, these are passive copper cables. They do not contain active electrical components or optical transceivers, meaning they consume zero power and do not generate additional heat.
    What is the operating temperature range for these cables?
    These cables are designed to operate within a standard commercial temperature range of 0°C to 70°C, making them suitable for standard enterprise data center environments.
    Are these QSFP-DD to QSFP-DD cables hot-pluggable?
    Yes, these cables fully support hot-pluggability. You can plug them in or remove them from QSFP-DD ports without powering down the host networking equipment.
    How can I download the datasheet for a specific part number?
    You can download the comprehensive datasheet for each specific part number (EDQD400-1, EDQD400-2-26, or EDQD400-2.5-26) by clicking the "DOWNLOAD" button in the corresponding row of the ordering information table.

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