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Start-ups Point2 and AttoTude plan to use terahertz radio frequencies for communication between servers instead of copper or optical connections — radio-based interconnections offer 1.6 TB/s using half the volume of copper | Consumes 1/3 the power of optical, but costs 1/3 more than optical

Consumes 1/3 the power of optical, but costs 1/3 more than optical

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