What is a DVI interface?

Answer: There are DVI-A, DVI-D and DVI-I on the DVI interface, which can be divided into single channel and dual channel. The DVI-A (DVI-Analog) interface only transmits analog signals. The DVI-D (DVI-Digital) interface is a purely digital interface and is not compatible with analog signals. DVI-I (DVI-Integrated) interface, compatible with both DVI-I and DVI-D plugs, compatible with digital and analog signals. Their connectors are shaped differently and cannot be plugged in if the connectors do not match.