It has x5 color-coded premium grade SR-PVC (Semi-Rigid PolyVinyl Chloride) insulated 24awg stranded (7×32 stranding) tinned copper conductors, with conductors cabled/twisted together to form a round core, then covered in a clear mylar core wrap, then covered in a Flexfoil shield (100% coverage aluminum foil/polyester tape backing with min. ).