AI backplane twinax cable shipments hit moon-scale: >130 Tbps today, 500 Tbps planned

jwt0625 · x · 2026-10-18

jwt0625 shares data from a 400GPL study group on AI backplane interconnects: at the 224G generation's yearly shipment rate, kilometers of twinax cable shipped for AI backplanes would literally reach the moon in 4.5 years. Supporting slides show current deployments already exceed 130 Tbps of backplane bandwidth, with announced plans to grow past 500 Tbps — a stark illustration of exploding copper interconnect demand in AI datacenters.

Related event: AI Backplane Twinax Cable Shipments Surge to 85,200 km Annually in 224G Era(2 posts)→

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