The primary differences between DAC and AOC cables lie in their working principles, transmission distances, and costs. DAC cables transmit electrical signals via copper, with passive DACs requiring no signal conditioning and active DACs using internal chips for signal boosting. AOC cables, on the other hand, convert signals from electrical to optical and back to electrical, using optical fibers for transmission.

AOC cables, designed with optical fibers, offer longer transmission distances than the 10-meter limit of DAC cables. They are also thinner and have a more flexible bend radius, potentially improving airflow cooling in racks. DAC cables are generally less expensive, making them a cost-effective choice for short distances.

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