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DAC (Direct Attach Cable)

T&S Direct Attach Cable (DAC) is a high-speed, cost-effective alternative to an optical transceiver or Active Optical Cable (AOC) in data centre applications when the transmission distance is within 7m. Each DAC product includes an EEPROM providing product information, which can be read by the host system. It has premium s parameter and impedance parameter control with automatic production, so that the DAC solution provides an energy-efficient connection for short-distance interconnection, and achieves higher port bandwidth, density and configurability with low cost and lower power consumption. Rigorous cable production testing ensures the best out-of-the-box installation experience, product performance and durability.

T&S DAC assemblies can deliver data rates up to 400 Gbps with a variety of lengths or customized options for greater design flexibility. The assemblies provide superior performance and reliability due to an innovative manufacturing and shielding process that minimizes external and internal noise. Beyond, T&S DAC are compliant with IEEE802.3by, IEEE802.3bj, and IEEE802.3cd, which are compatible with industry standard connectors.

100G QSFP28 Direct Attach Cable
  • Up to 25.78Gbps data rate per channel

  • Up to 5m transmission

  • Hot-pluggable QSFP+ 38 PIN footprint

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100G QSFP28 Direct Attach Cable
100G QSFP28 TO 4SFP28 Direct Attach Cable
  • Up to 25.78Gbps data rate per channel

  • Up to 5m transmission

  • Hot-pluggable QSFP+ 38 PIN footprint


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100G QSFP28 TO 4SFP28 Direct Attach Cable
40G QSFP+ Direct Attach Cable
  • Up to 10.3125Gbps data rate per channel

  • Up to 7m transmission

  • Hot-pluggable QSFP+ 38 PIN footprint


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40G QSFP+ Direct Attach Cable
40G QSFP+ TO 4SFP+ Direct Attach Cable
  • Up to 10.3125Gbps data rate per channel

  • Up to 7m transmission

  • Hot-pluggable QSFP+ 38 PIN footprint

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40G QSFP+ TO 4SFP+ Direct Attach Cable
25G SFP28 Direct Attach Cable
  • Up to 25.78125Gbps data rate

  • Up to 5m transmission

  • Hot-pluggable SFP 20PIN footprint

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25G SFP28 Direct Attach Cable
10G SFP+ Direct Attach Cable
  • Compliant with SFF-8431, 8432 and 8472.

  • Up to 10.3125Gbps data rate per channel

  • Up to 7m transmission

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10G SFP+ Direct Attach Cable
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Applications of DAC (Direct Attach Cable)

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