Data chip
A data chip was a type of crystalline data storage medium used by the Skagarans and the Vulcans.

In 2152, Doctor Yuris gave Sub-Commander T'Pol a container full of Vulcan data chips containing all available research on Pa'nar Syndrome. ()

Later in 2153, on a Skagaran colony planet, T'Pol and Commander Charles Tucker III recovered some Skagaran data chips from a data module in a crashed 19th century Skagaran starship. After showing Captain Jonathan Archer the data chips, Tucker and T'Pol took the data chips back to  in an effort to recover information on the history of the colony. ()

When the  found itself in the mirror universe in 2257,  recovered a data core from the wreckage of a nearby Klingon raider containing what Michael Burnham recognized to be Vulcan data chips. These data chips were translucent blue, individually pyramid-shaped, connecting together in sets forming an octahedron. Burnham concluded from these data chips that, in that universe, the Vulcans were sharing technology with the Klingons through an alliance. ()

Soon after, the mirror  provided Burnham the locations of rebel listening posts on a Vulcan data chip as part of a plan to deceive the Terran emperor. ()
Computer technology