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This only works with DVI-I -- Analog only
on March 5, 2013
This adapter is fine for the particular use it can handle, connecting DVI-I cable to PC's vga outlet.
There are basically two types of DVI cable and connectors. DVI-D and DVI-I.
DVI-I cable and connectors have 4 extra pins, which carry an analogue signal. The analogue signal is compatible with VGA. This adapter will let a DVI-I connect to and work with VGA socket.
A DVI-D cable/connector is digital only and carries no analogue signal so won't work with VGA no matter what adapter you use.
You can tell DVI-I from DVI-D by looking at the plug. I will have two rows of pins and a flat blade. If there are two pins above and two pins below the blade, then that's DVI-I. If the blade has no pins above and below, that's DVI-D.