DHT Electronics 2PCS RF coaxial coax adapter SMA female to RP-SMA male Package Content : 2 x SMA Adapters,both ends hole center Connector Material:Pure brass with Great connectivity.(Not Alloy) Impedance:50ohm; VSWR below 1.20 DHT Electronics Brand is a Registered Trademark of DHT LLC.Only authorized seller of DHT Electronics can sell under DHT Electronics listings.