# Meta Petal subsea cable project > Developing situation record from CLSTR: https://clstr.news/situations/meta-petal-subsea-cable-project > Updated: 2026-10-20T05:31:12.000Z. Sources: 6. Developments: 2. Meta has announced the development of Petal, a subsea cable system intended to connect the United States and France by 2029. The project aims to provide a transmission capacity of 1 petabit per second, which is approximately double the capacity of Meta’s previous record-setting Anjana cable. This capacity translates to a data transfer rate of roughly 125 terabytes per second, capable of transmitting 25,000 high-definition films (at 5 GB each) every second. The system will utilize advanced multi-core fiber technology, specifically employing 24 pairs of dual-core fibers to provide 96 independent optical cores. As the first commercial deep-sea system to utilize multi-core optical fibers over oceanic distances, the design is intended to increase density and manage high-capacity data flows. To maintain signal strength across the 7,000-kilometer span, the project will use roughly 100 optical amplifiers utilizing specialized ‘fan-in/fan-out’ technology. Technical partners for the project include NEC Corporation for design and construction, Sumitomo Electric Industries for fiber manufacturing, and Orange. The massive bandwidth is intended to serve as a physical backbone for Meta’s transatlantic AI clusters, facilitating real-time synchronization of model training, data replication, and telemetry flows between North American and European data centers, addressing the intensive data demands of distributed GPU computing. ## Timeline ### 2026-10-20: Meta announces Petal undersea cable project Meta is developing the 7,000-km Petal undersea cable to connect the US and France, aiming for a record-breaking 1 petabit per second bandwidth by 2029. 3 sources. https://clstr.news/cluster/meta-announces-petal-subsea-cable-to-connect-us-and-france ### 2026-09-25: Meta to deploy petabit subsea cable between US and France Meta plans to launch Petal, a transatlantic subsea cable connecting the US and France by 2029, capable of delivering 1 petabit per second to support AI model training and data synchronization. 3 sources. https://clstr.news/cluster/meta-to-deploy-petabit-subsea-cable-between-us-and-france --- Cite as: Meta Petal subsea cable project. CLSTR, https://clstr.news/situations/meta-petal-subsea-cable-project