It's 8×100G yeah, but they also use two fiber pairs so four lanes go on each. Th... | Hacker News

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		markonen on Dec 12, 2022 \| parent \| context \| favorite \| on: 100G-LR4 optic cable teardown It's 8×100G yeah, but they also use two fiber pairs so four lanes go on each. The QSFP-DD modules are also bigger (they stick out further from the slot) and have more power available, so that probably helps somewhat with engineering.

MichaelZuo on Dec 12, 2022 [–]

It's incredible how advanced the technology is, that fully saturates PCIE5.0 x16. but at a distance 1 million times farther.

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