Interlink transceiver
An interlink tranceiver was a part of a Borg drone's interlink system that used phased pulse technology. One of its key systems was phase modulation circuitry. 

In 2370, Geordi La Forge and Jean-Luc Picard used this circuitry to adapt a stolen transceiver into a Kedion pulse generator, with which they were subsequently able to reboot some of Data's ethical subroutines, and thereby break Lore's hold on his brother. ()

Borg components