EDID

Extended Display Identification Data: A VESA (Video Electronics Standards Association) standard data structure provided by the monitor or display to the source. Some of the EDID data format includes display monitor ID, model, date of manufacture, serial number, max display size, max resolution, and more. EDID also includes audio data, and can be used to control the format of audio signals transmitted by the source device. EDID’s are generally sent from a display each time it is connected to a source, but many Gefen devices allow the EDID’s to be stored, so there is no delay when sources are disconnected or switched.

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