Welcome to the 51st issue of Submarine Telecoms Forum magazine, themed 'Subsea Capacity'. This edition reflects on the dynamic and evolving world of submarine telecommunications, highlighted by the recent SubOptic event in Yokohama. Industry professionals gathered to discuss the latest advancements and challenges, emphasizing the role of subsea cables in connecting the world and fostering global communication. The issue explores various topics, including the upgrade to 40G technology, the impact of ICT in Africa, and the demand for low-latency connectivity to South America. As the industry continues to innovate, this issue celebrates the enduring legacy and future potential of submarine telecommunications.