connector gray lt reserved for future use gt white 110 ghz u2014 1 0 mm w connector for example in this embodiment an 18 ghz sma connector would have a brown stripe 360 degrees all the way around the connector a 20 ghz precision n connector would have a red stripe 360 degrees all the way around a 26 5 ghz 26 5 rounded up 3 5 mm connector would have an orange stripe 360 degrees all the way around the connector a 50 ghz 2 4 mm connector would have a green stripe 360 degrees all the way around the connector etc this method of installation would be very clear to the technicians who work with these connectors since near instantaneous connector identification possible without the need for handling the connector connector identification possible at a distance of greater than four feet from the average persons eye without the need for handling the connector additionally connector mismatch identification is possible at a distance of greater than four feet from the average person 39 s eye for example a 18 ghz sma and a 40 ghz 2 92 mm k will mate non destructively however the maximum frequency for this mismatched type of connection can handle only 18 ghz not 40 ghz this type of identification can.