These snap in blanking plates are designed to be used with the Lindy Modular AV Extender Wall Plate System which employs Balun technology to extend a combination of audio and video signals over low cost Cat5e/6 cable. Choose from a range of snap in modules, including VGA, RCA/Phono and S-Video modules including face plates, back boxes and bulk cable for a total extender solution. The blank plates may be customized by fitting your own adapter or connector.