BNC connectors are characterized by their 2-stud quick connect/disconnect bayonet coupling arrangement

They are one of the most popular of the coaxial connectors and are suitable for a wide range of systems, including radio telecommunication systems, medical equipment, computer networks, and test instrumentation

Impedance: 50 to 75Ω

Frequency range: up to DC 4GHz

Applications:

Test and measurement

Medical equipment

Instrumentations

Computers/LANs

Broadcast (75Ω