Fibro-Neural Interface Cabling
Fibro-Neural Interface Cabling drops off the Borg during the Borg Invasion of Defera. It is used as currency to purchase certain items from either Federation Research Scientist or Klingon Military Researcher.
"This is a salvaged piece of Borg fibro-neural interface cable. It may be deconstructed at the Defera special research stations for components useful in building new devices."