Micro-power relay
A micro-power relay was a piece of technology used in maintaining and repairing damage to a starship's warp core.

When the warp core matrix compositor of the  became fused after being attacked by a booby trapped Cardassian freighter and three Maquis raiders, Captain Sisko beamed a damage control team to the Malinche with 12 micro-power relays to assist Captain  with repairs. ()
Propulsion technology