Canare L-4CFB RG59 HD-SDI Coaxial Cable - 984' (Black)Canare L 4CFB Overview The black L 4CFB RG59 HD SDI Coaxial Cable 984' 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.