Three element composite cable, 2 conductors 16 AWG unshielded, 4 conductors 18 AWG shielded and 1 conductor 18 AWG unshielded, constructed with stranded bare copper, Plenum rated PVC insulation and an overall plenum rated PVC jacket data / communications and controls applications manufactured in the USA and (UL) listed CL3P or CMP c(UL)us 75°C.