These unique EDID
devices read and stores a computer's digital video information (EDID) in order to simplify the installation process for users who are extending a digital projector or plasma display away from the computer.What is EDID?
EDID - Extended Display Identification Data is a VESA standard data format that contains basic information about a monitor and its capabilities, including vendor information, maximum image size, color characteristics, factory pre-set timings, frequency range limits, as well as character strings for the monitor name, model number and serial number. EDID is an essential aspect of all Plug & Play connectivity systems as it allows the display to tell the signal source what types of signals and what resolutions it is capable of accepting. EDID is communicated over two conductors imbedded in the DVI cable called the DDC (Display Data Channel) lines.