Nodes are clustered groups of small components, either artificial or organic, which store different types of mediums such as data, navigational information, sensors, physical matter, or energy. (TNG: "Emergence" ; DS9: "Captive Pursuit"; VOY: "Unity", "Timeless", "Dark Frontier", "Unimatrix Zero, Part II") In 2374, on stardate 51186.2, Ensign Harry Kim and Seven of Nine removed a node with integrated Borg navigational data from the USS Voyager in order to download the data for Astrometrics. (VOY: "Revulsion")