The South Atlantic Inter Link (SAIL) is a 6,000-km submarine cable system connecting Kribi, Cameroon with Fortaleza, Brazil，with a branch to Equatorial Guinea.

The SAIL cable system consists of four fiber pairs, each capable of transmitting 100 wavelengths with a bandwidth of 100 Gbit/s and delivering a design capacity of 32 Tbps.

The SAIL cable system is invested by CAMTEL of Cameroon, and China Unicom as the landing party in Brazil., Huawei Marine is the turn-key solutions provider for the SAIL cable system. 

In Brazil, the SAIL cable system terminates at Telxius Fortaleza Cable Landing Station, seamlessly connecting with BRUSA and Sam-1 onwards to the US.

Marine installation of the SAIL cable system was successfully completed on September 4^th, 2018.

SAIL cable system enables connectivity among the following routes:

• São Paulo - Lagos 
• São Paulo - Cape Town 
• São Paulo - Johannesburg
• São Paulo - Lisbon
• São Paulo - London
• Miami - Lagos 
• Miami - Cape Town 
• Miami - Johannesburg
• Asburn, Virginia- Lagos 
• Asburn, Virginia - Cape Town 
• Asburn, Virginia - Johannesburg

The South Atlantic Express (SAEx1) is a 72 Tbit/s submarine cable system connecting South Africa directly to the US, linking Cape Town in South Africa, Fortaleza in Brazil and Virginia Beach, Virginia in the US, with branches to Namibia and Saint Helena.

The SAEx1 cable system is building by SAEx International Ltd, based in Mauritius with a subsidiary company (SAEx SA (Pty) Ltd) in South Africa, is building the South Atlantic Express (SAEx) cable. The company is also planning the  South Asia Express (SAEx2) , to form a unique 25000km submarine cable connecting Asia, Africa, South America and North America.