T3 submarine cable system connects South Africa with Mauritius, with branching units to Reunion Island and Madagascar.

T3 submarine cable project is developed by Mauritius Telecom, in a partnership with Liquid Telecom.

Liquid Telecom acts as the landing partner to land the cable in Amanzimtoti, KwaZulu-Natal province on the east coast of South Africa. METISS cable system also lands at the Amanzimtoni cable landing staion. 

T3 submarine cable project is a revival of the original IOX submarine cable project, a 8,850 km system to connect Mauritius with South Africa and India.

T3 cable system consists of 4 fiber pairs in its trunk, with design capacity of 13.5 Tbps per fiber pair and 54 Tbps for the whole system.

Alcatel Submarine Networks (ASN) has been contracted to supply and install the T3 submarine cable system.