Subspace transceivers were components of any type of subspace radio. Several starships were equipped with a subspace transceiver array. Subspace transceivers formed an integral part of the Borg Collective, as they were responsible for linking the trillions of drones into the collective consciousness. Enterprise NX-01 was equipped with a subspace transceiver array. In 2151, Ensign Hoshi Sato had to run a diagnostic of the array. (ENT: "Silent Enemy") In 2154, subspace transceivers were used by the Romulan Star Empire on the exterior of the Romulan drone ship. (ENT: "Babel One")