SMA (SubMiniature version A) Fiber Optic Connector by Veston Limited has a 50ohm impedance, 1/4 – 36 thread type coupling mechanism. This RF connector offers excellent electrical performance from 0 to 18GHz. And SMA connectors have various quality classes and different material options for different applications. SMA Optical connector is widely used in Vehicle Tracking System, Wireless LAN, Telecommunication, Aero and precise testing instrumentation, etc.