The dataset on submarine telecom cables was created by Cogea in 2014 for the European Marine Observation and Data Network. The underlying data is property of Telegeography and is available online at https://github.com/telegeography/www.submarinecablemap.com. Compared with the previous version, this version of includes the gigabit per second values that come from the Cable System Database of the Packet Clearing House organization and are available online at https://prefix.pch.net/applications/cablesystem/. The database contains lines and points representing cables and related landing points. Cables are represented as stylised paths, as actual cable routes locations are not available in most cases. The dataset includes any cable that crosses the EU waters (Marine regions). Marine regions and subregions boudaries are defined in Article 4 of the Marine Strategy Framework Directive (MSFD) and available online at https://www.eea.europa.eu/data-and-maps/data/msfd-regions-and-subregions.