Joymax TNC connectors are threaded RF connectors applicable from DC to 6GHz with constant 50 ohm impedance. They're the same as BNC connectors except for their mating threaded coupling. The threaded coupling mechanism improves control over the interface dimensions and allows them to be used under a higher environmental load than BNC, especially under a high vibration load. They're used for data transmission, medical and Test equipment, microwave components and aerospace applications.