TCS | Seacom 2.0: Alpheus Mangale unpacks all the details about the giant new subsea system

Loading player...
Seacom last week announced that it plans to build one of the highest-capacity subsea broadband cable systems the world has ever seen.
Dubbed Seacom 2.0, the cable system – which will have an expected design capacity of a staggering 2 000Tbit/s – will be larger than the company’s original system, which brought high-speed connectivity to Africa’s eastern coastline when it was launched in 2009.
The new system, which will include an “express route” from South Africa to Singapore and leg around South Africa to Lobito in Angola – and which will also cover much of the same East African coastline as the first system – will use the latest fibre-optic technology and 48 fibre pairs to deliver its extreme total capacity.
Alpheus Mangale, CEO of Seacom, sat down with TechCentral editor Duncan McLeod for an exclusive first interview with the TechCentral Show to unpack the announcement and provide much greater detail about the deployment – including its timelines and the technology that will be used.
In the interview, Mangale touches on a range of topics, including:
• What’s involved in building a submarine cable system of this magnitude;
• Why Seacom has chosen the routing for the cable that it has;
• The need for great redundancy around the African continent, and how this fed into Seacom’s planning for Seacom 2.0;
• The commercial model for the new system and what this means for the region;
• The assumptions Seacom is making about future internet demand and how that feeds into its return-on-investment forecasts;
• How the system will be funded and who is backing it;
• The risks inherent in building telecommunications infrastructure at this scale; and
• The terrestrial infrastructure that will be deployed to support Seacom 2.0, including landing stations and edge data centres.
Don’t miss a fascinating interview!
3 Oct 2025 English South Africa Technology · Business

Other recent episodes

TCS | The Cape Town firm quietly connecting Eskom, Pep and 6 000 ATMs

Réan van Niekerk Metacom has spent 25 years designing its own routers and running private networks for some of Africa's biggest retailers, without a cent of venture capital. In this episode of the TechCentral Show, founder Réan van Niekerk tells Fanie van Rooyen how the Cape Town company came to…
23 Oct 36 min

TCS | Frogfoot sees bigger fibre deals coming

Frogfoot plans to keep buying smaller fibre network operators in South Africa’s suburbs as the market consolidates, but CEO Shane Chorley stopped short of ruling out a sale of the business. “I’d be ignorant to say that we would ignore any offer,” Chorley said on the latest episode of the…
8 Oct 40 min

Meet the CIO | Vodacom’s Mohamed Sami on the agentic future

Mohamed Sami, group chief information officer at Vodacom, says autonomous AI agents that resolve customer problems without handing them to a human are the next big shift in customer experience – and that it is closer than many think. Speaking on TechCentral’s Meet the CIO podcast series, brought to you…
5 Oct 44 min