DAC 100G QSFP28 to 4x 25G SFP28 passive breakout

Vitex Part #: D1C-Q4SyyyC-AA

V1C-Q4SyyyC-EA is a high performance and cost-effective solution for SFP28 and QSFP28 equipment interconnects.

Features
Specifications
Applications
FAQs
Datasheet

Supporting 100 Gbps to 4 x 25 Gbps Support data rates: 25.78Gb/s (per channel) IEEE 802.3bj 100GEBASE-CR4 and P802.3 by compliance Compatible with SFP28 MSA and QSFP28 MSA Compatible with SFF-8402, SFF-8432, and SFF8665 High-Density QSFP28 38-PIN and 4x SFP28 20-PIN Connector Copper link length up to 3m Power Supply: +3.3V Low crosstalk I2C based two-wire serial interface for EEPROM signature which can be customized Operating Temperature: 0~70°C RoHS Compliant

Category	AOCs (Active Optical Cables)
Form Factor	QSFP28
Data Rate	100G
Distance	<100m
Cable Length	Up to 3m
Protocol	Ethernet
Temperature	Commercial (0–70°C)
Extender Type	Cable

Enterprise Networking Storage Area Networks (SAN)

Q: Does this DAC connect 100G to 4x 25G servers? A: Yes, it splits one 100G QSFP28 port into four 25G SFP28 links.

Q: Do I need to enable FEC on the 100G port? A: Yes, 100G copper links generally require RS-FEC to ensure data integrity.

Q: Is the breakout point robust? A: Yes, the transition point is molded to prevent strain on the individual cables.

Q: Are the SFP28 ends hot-swappable? A: Yes, you can unplug individual server links without disrupting the main switch port (though the link will drop).

Technical Documentation

Access comprehensive technical specifications, mechanical diagrams, and validation reports.

Download Datasheet PDF

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Built For Real Deployment Environments

Every Vitex optical product undergoes optical testing, interoperability validation, and system-level verification to ensure performance, reliability, and long-term availability in production networks.

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