AV-Cables 75 Ohm RG59 3G/6G HD SDI BNC extension cable with Male to Female connections is the perfect cable when come up a little short. Made with Belden 1505a cable the BNC 3G/6G HD SDI cable features a solid center conductor, double shielding and a foam dielectric for minimal signal loss. This SDI cable is UL listed type CMR making it an ideal choice for in wall cables