The Belkin PureAV HDMI 2-to-1 video switch allows you to connect to and switch among two high-definition, digital-video source devices through only one High-Definition Multimedia Interface (HDMI) or digital visual interface (DVI) connection on your high-definition television (HDTV). Its quick adoption 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 set-top boxes, entertainment computers, Blu-ray and HD-DVD players.