It has x9 20awg PP (PolyPropylene) insulated, color-coded, stranded (7×28 stranding) bare copper conductors, with conductors cabled/twisted to form a round core, thencovered in a Beldfoil shield (100% coverage aluminum foil/polyester tape backing with foil side facing out), with 24awg stranded (7×32 stranding) tinned copper drain wire and nylon ripcord, all wrapped in a gray PVC (PolyVinyl Chloride) jacket.