A
DVI-
D connector on a graphics card sends out a digital signal only, while a
DVI-I connector can send out a digital signal (for digital displays such as flat panel LCD monitors) as well as analog signal (for older displays such as a CRT monitor)
using a
DVI to VGA adaptor shown below.
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A DVI-D connector sends out a digital signal while a DVI-I connector can send out both a digital and an analog signal. A DVI-D cable is fully compatible with a DVI-I connector \u2013 it will only read the digital output and simply ignore the analog.Jan 13, 2021
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The analog part of DVI is compatible with standard VGA monitors. ... Because of that physical difference, you can plug a DVI-D cable into a DVI-I connector but you can't plug a DVI-I cable into a DVI-D connector. A DVI-D cable is wired only for the digital video signal. DVI-D cables can't carry analog signals.