This TygerWire RG621500BUL 500-Ft RG6 Coaxial Cable is professional-quality cable with 18 gauge copper clad steel center conductor. Cable also swept-tested to 3000MHz(3GHz) to assure excellent off-the-reel performance. This cable heavily 60% shielded with 100% foiled to minimize interference. Cable is UL rated for in-wall installation. Copper clad steel conductor maxima the cable length you can run. Cable jacket is sequentially marked to keep track of cable used.