100G QSFP28 to 4x25G SFP28 breakout AOC for high-density data center connectivity.
When scaling 100G spine switches to multiple 25G leaf nodes, traditional DACs often lack the reach or flexibility needed for dense rack deployments. This breakout active optical cable solves connectivity challenges by splitting a single 100G QSFP28 uplink into four independent 25G SFP28 lanes.
Rated for 103Gb/s on the QSFP28 end and 25.78Gb/s per SFP28 lane, it delivers full bandwidth over 3 meters of OM3 fiber. The lightweight design reduces cable bulk compared to copper alternatives, enabling better airflow management in high-density server racks.
Ideal for HPC clusters and storage arrays requiring IEEE 802.3bm 100GBASE-SR4 compliance, the QSFP28-4xSFP28-AOC-3m offers a reliable drop-in replacement for DACs. It ensures seamless interoperability between 100G and 25G equipment without signal degradation.
Connects one 100G QSFP28 port to four 25G SFP28 ports for flexible network architecture.
Supports data rates up to 103Gb/s on QSFP28 and 25.78Gb/s per SFP28 lane.
Utilizes OM3 fiber with 850nm VCSEL transmitters for reliable 3-meter transmission.
Smaller diameter and lighter weight than DAC cables improve rack airflow and cable management.
Supports hot-plugging for easy installation and maintenance without system downtime.
Compliant with IEEE 802.3bm, IEEE 802.3by, and InfiniBand SDR/DDR/QDR standards.
Complete technical details for integration and deployment planning.
| Product Type | Breakout Active Optical Cable |
|---|---|
| Cable Length | 3m |
| Fiber Type | OM3 Multimode |
| Wavelength | 850nm |
| Transmitter Type | VCSEL Laser |
| Receiver Type | PIN |
| Connector A | QSFP28 (SFF-8436) |
|---|---|
| Connector B | 4x SFP28 (SFF-8431) |
| Data Rate (QSFP28) | 103Gb/s |
| Data Rate (SFP28) | 25.78Gb/s |
| Protocol Support | IEEE 802.3bm 100GBASE-SR4, IEEE 802.3by 25GBASE-SR, InfiniBand SDR/DDR/QDR |
|---|
| Supply Voltage | 3.3V |
|---|---|
| Power Supply Range | 3.15V to 3.46V |
| Bit Error Rate | 5x10^-5 |
| Operating Case Temperature | 0℃ to +70℃ |
|---|---|
| Storage Temperature | -20℃ to +85℃ |
| Relative Humidity | 0% to 85% (non-condensing) |
| Fiber Bend Radius | 30mm |
| Compliance | RoHS |
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