The Lenovo 7Z57A03553 is a 10-meter active optical breakout cable that connects a single QSFP28 port to four independent SFP28 ports, enabling flexible lane splitting for high-speed datacenter and storage networks. Part number 7Z57A03553 supports full-duplex operation at up to 25 Gbps per lane (100 Gbps aggregate), compatible with Lenovo ThinkSystem servers and switches supporting QSFP28 breakout mode. The cable features shielded construction for EMI protection and active signal conditioning to maintain signal integrity over the 10-meter run length. Typical applications include multi-server connectivity in hyperscale environments, redundant storage fabric deployments, and mixed-speed network configurations where 25G SFP28 transceivers must be provisioned from 100G QSFP28 infrastructure.
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