Features N FEMALE TO SMA FEMALE: These are N type female to SMA female adapters for RF connections of coaxial coax cable DURABLE COPPER: These connectors are made of copper material for long service life and corrosion resistance RELIABLE PERFORMANCE: RF adapter has wide band, perfect performance, high reliability, you can use with confidence EXCELLENT MATERIAL: RF adapter adopts copper and electric gold plated material; The white insulation part is PTFE, resistant to high temperature TECHNICAL PARAMETERS: N female to SMA female adapter impedance is 50ohms, frequency from 0‑6GHZ Specification: Item Type: N Female to SMA Female Adapter Material: Copper, electroplated White Insulation: PTFE(high temperature resistance) Impedance: 50ohms Frequency: 0-6Ghz Package List: 2 x N Female to SMA Female Adapter Package List 2 x N Female to SMA Female Adapter