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Inside Petal: Building the World’s First Petabit-Class Transoceanic Subsea Cable

Meta Engineering · Sep 21, 2026 · Product Launches

Meta announces Petal, the first transoceanic subsea cable to deliver petabit (1 Pbps) capacity.

“Today, we’re announcing Petal, the first transoceanic subsea cable at petabit capacity, and the first to deploy multi-core fiber at scale.”

Meta unveiled Petal, a 7,000 km France-to-US subsea cable delivering 1 petabit per second and deploying multi-core fiber at scale, slated for service in 2029. While a major networking infrastructure milestone that underpins growing data and AI-driven connectivity demand, it is not a direct AI research or product signal.

meta subsea-cable infrastructure connectivity multi-core-fiber

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