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400GbE to 2x200GbE (QSFP-DD to 2xQSFP56) Passive Direct Attach Cable

DAC-400G-QDD-2*QSFP

from $79.00

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  • 400G to 2x200G data rate
  • Support 8x50Gb/s PAM4 modulation
  • QSFP56-DD and QSFP56 form factor
  • Data transmission support up to 3m
  • Hot pluggable and I2C interface
  • RoHS-compliant and IEEEP802.3cd
  • Operating case temperature range: 0 to +70ºC
400G to 2x200G (QSFP-DD to 2xQSFP56) Direct Attach Cable

Generic Compatible 400G to 2x200G DAC Cable (1-3m, Passive, QSFP56-DD to QSFP56, 26 – 30AWG)

Using a 400GbE connector on one side and two separate 200GbE connectors on the other two. The 400G to 2x200G passive DAC cable assembly supports data transmission via two 200GbE Gigabit Ethernet links. The cable connects the dual pairs on each QSFP56 multiport end to the 16 pairs on the QSFP56-DD end. Hot-pluggable QSFP56-DD and QSFP56 form factors. Up to 3m of length is supported with 8x50Gb/s PAM4 modulation, which is over 26-30AWG cable.
DAC breakout cables offer high-performance I/O solutions for LAN, HPC, and SAN. It is compatible with IEEE802.3cd and QSFP-DD-MSA. Moreover, the high-speed copper cable assemblies meet 400 Gigabit Ethernet standards. Perfect for enterprise networks, SANs, switch/router/HBA, and data storage and communications.

Specification

Form FactorQSFP-DD to 2xQSFP56Modulation FormatPAM4
Max. Data Rate400Gbps to 2x200GbpsCable DistanceUp to 3m
MediaCopperMin. Bend Radius55mm(QSFP-DD) | 45mm(QSFP56)
Cable TypePassive TwinaxWire AWG30AWG(1m, 2m) | 26AWG(3m)
Temperature Range0°C to 70°CProtocols400GBASE Ethernet, QSFP-DD MSA, IEEE802.3cd
Vendor NameAsterfusionApplicationdata centers, enterprise networks

Questions & Answers

What is a 400G QSFP-DD to 2x200G QSFP56 Direct Attach Cable?
A copper 400G to 2x200G breakout direct attach cable supports up to 400Gbps. This is perfect for high-performance, short-distance networking.

What are the advantages of 400G to 2x200G Direct Attach Cables?
Connectivity flexibility: Ideal for split-bandwidth networks with one 400G port and two 200G ports.
Great performance: Ideal for high-speed data centre interconnects with 400Gbps aggregate bandwidth.
Cost-effective fix A feasible alternative to optical cables for short-distance, high-speed communications.

This 400G breakout cable is specifically designed for:
  • AI/ML cluster connectivity
  • Data center spine-leaf architecture
  • High-density switch-to-switch connections
  • Rack-to-rack infrastructure

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