100G QSFP28 to 4x 25G SFP28 AOC 2M Cable
The UNC Group 100G QSFP28 active optical cable delivers enterprise-grade connectivity for demanding data center environments. This 2-meter AOC cable combines a single 100G QSFP28 port with four 25G SFP28 channels, enabling flexible bandwidth distribution across Cisco-compatible network infrastructure. Ideal for high-speed server interconnects, storage area networks, and virtualized environments requiring reliable, low-latency transmission over short to medium distances.
Built for organizations deploying 25G per-lane technology, this QSFP28 to SFP28 breakout cable eliminates the need for separate transceivers and external breakout boxes, reducing complexity and operational costs. The active optical design ensures signal integrity and supports full-duplex communication at line rate, making it essential for modern data center architectures.
Key Features
-
100G QSFP28 to 4x 25G SFP28 configuration — Flexible lane breakout for multi-speed deployments
-
2-meter active optical cable — Optimized for rack-to-rack and short-distance data center runs
-
Cisco-compatible design — Certified interoperability with Cisco Nexus and UCS platforms
-
Low-latency transmission — Direct optical path eliminates electrical conversion delays
-
Plug-and-play installation — No external power or configuration required
-
Full-duplex operation — Simultaneous bidirectional communication at line rate
-
Durable construction — Reinforced connectors and protective sheathing for high-reliability environments
Technical Specifications
| Specification |
Details |
| Manufacturer |
UNC GROUP LLC |
| Part Number |
QSFP-4X25G-AOC2M-U |
| Cable Type |
Active Optical Cable (AOC) |
| Connector Configuration |
1x 100G QSFP28 to 4x 25G SFP28 |
| Cable Length |
2 meters |
| Data Rate |
25 Gbps per lane (100 Gbps aggregate) |
| Transmission Distance |
Up to 100 meters (dependent on fiber type) |
| Operating Temperature |
0°C to 70°C |
| Storage Temperature |
-40°C to 85°C |
| Platform Compatibility |
Cisco Nexus, UCS, and standards-based QSFP28 systems |
Frequently Asked Questions
What is a 100G QSFP28 to 4x 25G SFP28 AOC cable used for?
This active optical cable breaks out a single 100G QSFP28 port into four independent 25G SFP28 channels. It's commonly used in data centers for connecting high-speed servers, storage arrays, and network switches where flexible bandwidth allocation is required without additional breakout hardware.
Is the UNC Group QSFP28 cable compatible with Cisco equipment?
Yes, this Cisco-compatible QSFP28 cable is designed for seamless integration with Cisco Nexus switches, UCS fabric interconnects, and other standards-based platforms supporting 100G QSFP28 and 25G SFP28 interfaces.
How does an active optical cable differ from passive copper cables?
An active optical cable (AOC) uses embedded electronics to regenerate and amplify signals, enabling longer distances and superior signal integrity compared to passive copper alternatives. The 2-meter length of this cable provides optimal performance for rack-to-rack connectivity in data center environments.
What are the power and installation requirements for this AOC cable?
The 100G QSFP28 AOC requires no external power supply or configuration. Simply insert the QSFP28 connector into the host port and connect each SFP28 end to the target devices. Plug-and-play operation ensures rapid deployment with minimal downtime.
