DAC 400G QSFP56-DD to 4x 100G QSFP56 passive breakout

Vitex Part #: D4C-D4QyyyC-AA

The V4C-D4QyyyC-EA is a 400G QSFP56-DD to 4x 100G QSFP56 Direct Attach Copper (DAC) breakout cable, designed for high-density interconnect applications. It features a QSFP-DD module compliant with the QSFP-DD MSA and four QSFP modules compliant with SFF-8661, enabling a transmission data rate of up to 53.125Gbps per channel and facilitating 400Gb/s to 4x100Gb/s transmission. With a link length of up to 3 meters, it also includes built-in EEPROM functions and operates within a case temperature range of 0°C to +70°C.

Features
Specifications
Applications
FAQs
Datasheet

QSFP-DD Module compliant to QSFP-DD MSA
QSFP Module compliant to SFF-8661
Transmission data rate up to 53.125Gbps per channel
Enable 400Gb/s to 4x100Gb/s Transmission
Link length up to 3m
Built-in EEPROM functions
Operating case temperature 0°C to +70°C
RoHS2.0 compliant

Category	Direct Attach Cables (DACs)
Form Factor	QSFP-DD
Data Rate	400G
Wavelength	850nm
Distance	500m
Cable Length	Up to 3m
Protocol	Ethernet
Temperature	Commercial (0–70°C)
Extender Type	Cable

AI Data Centers Data Center Interconnect High Performance Computing (HPC)

Q: What data rate does this Direct Attach Copper (DAC) cable support?
A: This Direct Attach Copper (DAC) cable supports 400G with QSFP-DD connectors.

Q: What is the maximum cable length?
A: This cable supports lengths up to 500m.

Q: When should I use a Direct Attach Copper versus an AOC?
A: DACs are best for short-distance connections (typically under 5m) within a rack or between adjacent racks. They offer lower latency and cost than AOCs for short runs. For longer distances, consider an AOC.

Q: What applications is this cable designed for?
A: It is suited for AI Data Centers, Data Center Interconnect, High Performance Computing (HPC) environments.

Technical Documentation

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Download Datasheet PDF

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