Knightsbridge SF0150MB Screwless Satellite Outlet Plate 1 Gang Matt BlackIdeal for standard SAT TV/F-type connections (non-isolated). Non-isolated outlets are the standard type for domestic installations. This version must be used for satellite installations as a two way signal is required. The satellite box does not only receive signals it also sends a signal back to the satellite dish. Made from high quality ultra slim, premium grade material. Complete with integral gasket.