The Belkin PureAV HDMI 3-to-1 video switch allows you to connect to and switch among three high-definition, digital-video source devices through only one high-definition multimedia interface (HDMI) connection on your high-definition television (HDTV). Its quick adoption has made HDMI one of the most common audio video connections available. It is used on high-definition components, such as HDTVs, up-converting DVD players, HD cable/satellite boxes, entertainment computers, and the newly released Blu-ray and HD-DVD players.