The Flange version is used for panel mounting which are applicable when the attachment can only be made on one side of the panel. XAHonor flange mount SMA connectors includes SMA 2-hole straight flange jack connectors,Website:http://www.honorconnector.com,SMA 4-hole straight flange jack connectors, SMA 2-hole straight flange plug connectors, SMA 4-hole straight flange plug connectors. XAHonor flange mount SMA connectors are a popular general purpose high performance 50 ohm connectors.SMA Flange Mount ConnectorsPicturePart NumberDescriptionGenderMaximum FrequencyPolarityOrientationData SheetSMA-JFDSMA Straight  Plug   2-hole mount  50 OhmPlug(male)18GHzStandardStraightSMA-JFD22SMA Straight  Plug   2-hole mount  50 OhmPlug(male)18GHzStandardStraightSMA-KFD8SMA Straight  Jack   2-hole mount  50 OhmJack(female)18GHzStandardStraightSMA-KFD293GDSMA Straight  Jack   2-hole mount  50 OhmJack(female)18GHzStandardStraightSMA-KWFD23SMA Right Angle Jack   4-hole mount  50 OhmJack(female)18GHzStandard Right Angle