Deep-sea cables excel in data transmission, outpacing satellites. While satellites provide global coverage, their bandwidth and capacity is limited. In contrast, deep-sea cables handle vast data volumes, transmitting terabits per second. They meet the high-speed internet and global communication demands. Spanning long distances, like the 39,000-kilometer SEA-ME-WE 3 connecting 33 countries, deep-sea cables serve as vital infrastructure. They can even bring positive ecological impact, creating artificial reefs and providing habitats for diverse marine species. These cables revolutionise connectivity, bridging continents and enabling seamless communication. With their immense capacity for transmitting information, deep-sea cables drive the ever-expanding digital world, ensuring the flow of information across the globe.