Twinax connectors are twin contact connectors utilized with 78, 95 and 100 ohm twin conductor cables. Polarized key and keyway construction provide greater strength and superior electrical performance for operation from DC to 200MHz. Twin-BNC connectors are designed with polarized contacts (one female, one male) and a two-stud bayonet coupling. The bayonet coupling provides ease of connecting and disconnecting and is ideal in applications where polarization is required.