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The Calypso is Van Oord's second cable-laying vessel in addition to the Nexus. The vessel is fitted with a cable carousel on deck and also with a second, below-deck cable carousel, with a total cable-carrying capacity of 8,000 tonnes. Suitable for efficiently laying two cables simultaneously, the Calypso will mainly be deployed to install inter-array grid and export cables for offshore wind projects, including high-voltage direct current cables.