CablesOnline , 5-Pack SMA Female Jack PCB Mount, Gold Plated Right-Angle RF Connectors, RF-M903-5 Connector A: SMA Female (outside threads + NO inside pin) Connector B: 4-Pin PCB Mount Teflon Insulator ; Commercial Grade SMA Series ;Gold-Plated Contacts ; Impedance: 50 Ohm ; PCB Mount Distance: ~ 4mm ; Pin Size : ~ 4mm x 1mm x 1mm 5 pieces of SMA / PCB RF coaxial connectors