This is a brand new genuine 100 ft long RG-8X (Mini 8) coaxial cable manufactured by Steren Electronics. This cable is approximately 1/4" thick, double shielded with a stranded center and fully molded PL-259 connectors. It is thinner and more flexible than standard RG8U, and can handle up to 1000 watts at 30 MHz. A good choice for ham and CB radio antennas. ? 50 ohm impedance ? 0.242" OD black PVC jacket ? Stranded bare copper center conductor ? Aluminum foil and bare copper braid shields ? Polyethylene foam insulation ? Fully molded nickel plated brass connectors