SMA Male to SMA Male Precision Adapter, 4 Hole Flange PN: P-SMAM-SMAM-305
SMA Male to SMA Female Adapter, 4 Hole Flange PN: P-SMAM-SMAF-304
N Male to N Female Precision Adapter, 4 Hole Flange PN: P-NM-NF-303
2.92mm Male to 2.92mm Female Precision Adapter, 4 Hole Flange PN: P-2.92M-2.92F-307