The Sweden-Finland 4 (SFS-4) submarine cable is a 146-kilometer-long fiber-optic cable that connects Sweden and Finland, providing high-speed data communication services to the two countries. The cable project was initiated by Telia, the largest telecommunications company in the Nordic and Baltic regions, and is operated in partnership with Finnish telecommunications company DNA.
The SFS-4 submarine cable has a capacity of 100 gigabits per second and is designed to meet the increasing demand for high-speed internet connectivity in the region. It has four fiber pairs, which can be used for different purposes such as internet traffic, data centers, and cloud services. The cable is part of a larger network of undersea cables that connect Europe and Asia, contributing to the development of the digital economy in the region.
The SFS-4 submarine cable was laid in 2015 and went into operation in 2016. It was the first direct submarine cable connection between Sweden and Finland, providing a secure and reliable data link between the two countries. The cable has been a significant investment for both Telia and DNA, and has helped to improve the quality of internet services in the region.