At the bottom of the Atlantic Ocean lies a multitude of cables carrying bundles of optical fibers that support telecommunications between continents. The MAREA cable is considered the gold standard of these transatlantic cables and spans 6,605 km from Virginia Beach, Virginia, U.S. to Bilbao, Spain. It came into service in 2018.
Click here for original story, Increasing optical fiber capacity and channel data rates in submarine communication cables
Source: Phys.org