AOC 100G QSFP28 to 4x 25G SFP28 breakout

Vitex Part #: V1C-Q4SyyyC-AA

The V1C-Q4SyyyC-AA is a 100G QSFP to 4x SFP28 Active Optical Cable (AOC) designed to facilitate 100G to 25G Ethernet interoperability. It aggregates four discrete 25G SFP28 channels into a single 100G QSFP28 parallel interface, supporting maximum link lengths of 70 meters over OM3 multimode fiber or 100 meters over OM4 multimode fiber. The device features electrical interfaces compliant with QSFP28 and SFP28 connectors, operates on a single 3.3V power supply, and is specified for case operating temperatures ranging from 0°C to 70°C.

Features
Specifications
Applications
FAQs
Datasheet

Supports 100G to 25G Ethernet interoperability Aggregate 4 discrete SFP28 25G channels into single parallel QSFP28 100G interface Maximum link length of 70m links on OM3 multimode fiber or 100m links on OM4 multimode Fiber
Electrical interface compliant to QSFP28 connector and SFP28 connectors Single 3.3V power supply
Case operating temperature 0°C to 70°C
Compliant to RoHS Class 1 laser
Safety

Category	AOCs (Active Optical Cables)
Form Factor	QSFP28
Data Rate	100G
Wavelength	850nm
Distance	<100m
Cable Length	Up to 100m
Protocol	Ethernet
Temperature	Commercial (0–70°C)
Extender Type	Cable

Enterprise Networking Storage Area Networks (SAN) Top-of-Rack (ToR)

Q: Can this breakout cable connect a 100G QSFP28 port to four 25G SFP28 ports? A: Yes, this 100G to 4x25G breakout AOC is designed specifically for splitting a 100G switch port to four 25G servers.

Q: Do I need to configure my switch for this cable to work? A: Yes, the 100G port usually needs to be manually configured to "4x25G" or "breakout" mode in the switch CLI.

Q: Is this cable suitable for Top-of-Rack (ToR) interconnects? A: Absolutely, the lightweight fiber design allows for easy cable management in high-density racks compared to heavy copper DACs.

Q: What is the maximum reach of this breakout AOC? A: It supports transmission distances up to 70m on OM3 and 100m on OM4 multimode fiber.

Technical Documentation

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

Download Datasheet PDF

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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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