1pcs High Value N Male Plug to SMA Female Jack Adapter High Value Pure Brass Thick Version (VSWR Below 1.1) Model: N male to SMA female Material:High value Pure Brass.(Not Alloy).Connectors are Milled Brass with Nickel Plating for Durability VSWR1.1 Color: Silver.Nickel Plating Better Frequence Response. Compatible with Agilent,R&S,Tektronix Receiver.