In February 2008, MainOne began the construction and laying of its state-of-the-art undersea cable system. This would be the first privately wholly owned subsea cable along the West African coastline. MainOne's current cable system is a 7,000km submarine cable with landing stations in Nigeria, Ghana and Portugal. Several possibilities still exist with branching out units along the coast of West Africa in Morocco, Canary Islands, Senegal and Ivory Coast as options to cater to the expected surge in capacity demand.
By extension, MainOne is able to also interconnect with SEACOM and other international cables from Seixal in Portugal via Tata Communications' European and Transatlantic networks and interconnection in Telehouse, London. The submarine cable currently delivers high speed bandwidth of 1.92 Tbps and has been proven to provide capacity of at least 4.96 Tbps