CablesOnline, 2-Pack N-Type Female / (Reverse Polarity SMA) RP-SMA Female RF Adapters , RF-S161-2 RP-SMA Female Jack (outside threads + inner pin) N-Type Female Jack Commercial Grade RF Series Adapter ; Delrin Insulator Nickel-Plated Machined Brass Construction; Gold Plated Contacts (2) N-Type Female / RP-SMA Female Adapters