The black L-4CFB RG59 HD-SDI Coaxial Cable - 984' (300 Meter) from Canare is a 20 AWG RG59 type digital video cable roll. The cable is designed for use with SD/HD-SDI applications, satellite head-ends, or any other work in broadband, digital, and HDTV facilities. The cable is rated at 75? impedance and features low signal loss. It also includes a solid copper center conductor, a tinned copper-braided shield, and foam polyethylene dielectric.