SEACOM is a 17,000 km (11,000 mi) submarine cable connecting South Africa, Kenya, Tanzania, Mozambique, Djibouti, France and India. The SEACOM cable system was ready for service on 23 July 2009, supplied by SubCom. 

SEACOM Cable System was upgraded to 1.5Tbps capacity in 2018. SEACOM's lit capacity jumped from 6.85Tbps to 10.5Tbps as of March 2026, according to the quarterly report issued by the Communication Authority of Kenya.

Cable Landing Stations:

• Mtunzini, South Africa, in a partnership with Neotel as landing party in South Africa and extending to Neotel data centre in Midrand, Johannesburg
• Mombasa, Kenya
• Dar Es Salaam, Tanzania
• Maputo, Mozambique
• YAC A CLS, Djibouti
• Zafaranan, Egypt
• Abu Talat, Egypt
• Marseille, France
• Mumbai, India

The SEACOM cable system is variously described as a $600 million investment. The initial private investment in the SEACOM project was US$375 million: $75 million from the developers, $150 million from private South African investors, and $75 million as a commercial loan from Nedbank (South Africa). The remaining $75 million was provided by Industrial Promotion Services (IPS), which is the industrial and infrastructure arm of the Aga Khan Fund for Economic Development. The IPS investment was funded by $15 million in equity, and a total of $60.4 million in debt from the Emerging Africa Infrastructure Fund and the FMO.

Current ownership structure of SEACOM is as follows: 30% IPS, 30% Remgro, 15% Sanlam, 15% Convergence Partners, and 10% Brian Herlihy.

SEACOM and TGN-EA are a common cable in some segments. SEACOM represents the East African portion of the system as well as two fiber pairs between Egypt and India. Tata Communications TGN-EA  has two fiber pairs from Egypt to India and the branch to Jeddah. Both SEACOM and Tata Communications TGN EA have one fiber pair on TE North for connectivity across Egypt to Europe.