TRB connectors are available in configurations with 2-, 3-, or 4-lug bayonet coupling, as well as push-on versions. Designed for twinaxial and triaxial cable systems, they are mechanically similar to BNC connectors and share the same outer dimensions. TRB connectors are commonly used in applications where high noise immunity is required and signal frequencies typically remain below approximately 500 MHz.

TRT connectors are closely related to TRB connectors, with the primary distinction being the coupling mechanism. While TRB uses a bayonet interface, TRT connectors employ a threaded coupling for enhanced mechanical security. In this respect, TRT can be considered the twinaxial/triaxial counterpart to the TNC connector in the BNC family. Like TRB, TRT connectors maintain the same form factor as BNC/TNC connectors and are well suited for “noise-free, guarded” circuit applications requiring stable, low-noise signal transmission.