N Male to SMA Female, 4 Hole Flange Test Adapter, DC to 18GHz PN: P-NM-SMAF-370
N Female to SMA Female Precision Adapter, 4 Hole Flange PN: P-NF-SMAF-312
N Female to SMA Female Precision Adapter, 4 Hole Flange PN: P-NF-SMAF-125