Meta unveils Petal subsea cable delivering 1 petabit per second
Meta announced Petal, a transatlantic subsea cable that will move 1 petabit per second (1,000 terabits per second) across roughly 7,000 km between France and the United States. The system, built with 2‑core fiber in a 24‑pair (48‑fiber‑pair) architecture and ultra‑pure synthetic silica, is designed to stay within existing 18 kV power‑feeding limits, avoiding new power‑equipment costs. Meta says…
Key points
- Petal will transmit 1 petabit per second across ~7,000 km between France and the United States, slated for 2029.
- The cable uses 2‑core fiber in a 24‑pair system, staying within existing 18 kV power limits.
- Meta expects the pipe to support about 75 % of the world’s population streaming music simultaneously.
Shares were up 5.14% over the past week but showed no immediate reaction to the announcement. CFO Susan Li told analysts that the industry has under‑built for AI demand, making the new capacity valuable. CEO Mark Zuckerberg said there is “nowhere near enough compute for all the demand,” positioning Petal as a long‑term infrastructure foundation. Meta’s FY2026 capital‑expenditure guidance is $130‑$145 billion, with debt at $83.66 billion to fund the build.
Meta Just Unveiled Massive 1 Petabit-Scale Subsea AI Superhighway
247wallst.com · 21 September 2026
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