Lenovo 3M 100G QSFP28 to 4X25G SFP28 Breakout DAC Cable - 7Z57A03565

Lenovo 7Z57A03565 Breakout DAC Cable

Overview

The Lenovo 7Z57A03565 is a 100Gbps QSFP28 to 4x25Gbps SFP28 direct attach copper (DAC) breakout cable. This cable is designed to connect a single 100Gbps QSFP28 port on a network device to four independent 25Gbps SFP28 ports on other devices, enabling high-density server or switch uplinks in data center environments. It eliminates the need for optical transceivers and fiber cabling for short-reach connections, reducing both cost and power consumption.

Compatibility

This breakout cable is designed for use with Lenovo ThinkSystem servers and network adapters that support QSFP28 and SFP28 interfaces. Specifically, it is intended to connect to devices featuring the ThinkSystem Broadcom 57454 10/25GbE SFP28 4-port PCIe Ethernet Adapter V2 (MPN 4XC7A08316) or similar adapters with compatible QSFP28 and SFP28 port configurations. Ensure your network switch or adapter has a 100Gbps QSFP28 port on one end and four 25Gbps SFP28 ports on the other for proper operation.

Installation Notes

This is a passive copper cable, meaning it does not require external power. Ensure the QSFP28 connector is fully seated in its port and that the four SFP28 connectors are securely inserted into their respective ports. For optimal performance and to prevent damage, avoid excessive bending or pulling on the cable. The specific length of this cable is not detailed in the provided specifications, so verify the required reach for your deployment to ensure a proper fit.