Attenuation parameter:Nom. Attenuation(dB/m):0.276 (100MHz)Nom. Attenuation(dB/m):0.623(400MHz)Nom. Attenuation(dB/m):1.12(1000MHz) Description:RG-174 Pure Copper Coaxial Cable Low Loss for Wi-Fi Router, PCI Card, Access Point. Ultra Low Loss Extension Cable for antenna, Made from low attenuation thin RG174 Cables. Specification:Type: SMA Male to SMA FemaleImpedance: 50 ohmCable length: 33 feetCable diameter: 0.11 inch Package Includes:2 x SMA Male to SMA Female Coaxial Cable