400G QSFP-DD Cable and Transceiver Modules Data Sheet | FS
QSFP-DD to 4xQSFP28 cable assemblies are high performance, high bandwidth and cost effective interconnect solutions that support 400G standard applications with different data rates.
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Yes, QSFP-DD ports can be configured to support 200G or 100G operation through port breakout or native lower-speed optics. For example, a single QSFP-DD port can be split into 2×200G or 4×100G