For schools, hospitals, and government buildings, BTX's new plenum HDMI assemblies allow installers to run a plenum HDMI signal without having to worry about powering a Cat-5 transmitter or receiver. Available in lengths of 25, 33, 40, and 49 feet, each assembly features 24AWG oxygen-free, pure copper conductors, triple shielding to reject EMI and RFI interference, and gold-plated connectors. The CMP-certified jacket and Teflon inner insulators provide the fire protection to run the cables in the walls or air plenums without a conduit.