The Andrew AL4RPV-50 1/2 in plenum-rated coaxial cable features an air dielectric. This 50 Ohm coaxial cable has an aluminum outer conductor and a copper-clad aluminum inner conductor. The jacket is off white. This transmission line uses L4Txx-PSA style connectors. Maximum frequency capacity is 6.0 GHz.brbrThe Andrew 1/2 in plenum-rated coaxial cable with air dielectric is available in bulk and is priced per foot.