Lenovo 7Z57A03557 1M Passive 25G SFP28 DAC Cable

Lenovo 7Z57A03557 1M Passive 25G SFP28 DAC Cable

Overview

The Lenovo 7Z557A03557 is a 1-meter passive Direct Attach Copper (DAC) twinax cable designed to provide high-speed, direct connections between SFP28 ports. This cable is crucial for building dense, high-bandwidth network infrastructure in server racks, enabling efficient data transfer for demanding applications like storage networking and high-performance computing within a 1-meter reach.

Compatibility

This 1m SFP28 DAC cable is specifically engineered for compatibility with Lenovo ThinkSystem servers featuring Broadcom 57454, 57504, and 57414 10/25GbE Ethernet Adapters. It ensures a direct, signal-integrity-maintained link between these adapter ports, eliminating the need for transceivers and reducing overall system cost and power consumption for compatible configurations.

Installation Notes

As a passive DAC cable, the 7Z57A03557 requires no external power. It connects directly from one SFP28 port to another. Ensure the ports on your compatible Lenovo ThinkSystem adapters are clean and free of debris before insertion. The 1-meter length is ideal for short-reach interconnects within a single rack or between adjacent racks.