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1, dp (DisplayPort) is a digital form, micro-packet transmission, the current version of the simultaneous transmission of six 1080i video + audio signals
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2, HDMI is a digital form of dedicated line transmission, can only be transmitted at the same time all the way video + audio signals
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3, DP to hdmi conversion requires a decoder to convert, therefore, the converter is a small box, which is equipped with a decoder chip can be dp signals in the multi-channel video + audio signals to unpack, split, this type of converter is all the way to the dp line input, while the current version of the output can reach up to six-way output (including hdmi, DVI, VGA)
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Common equipment on the market is DP to HDMI, DP to DVI/VGA converter, this type of conversion line are one-way conversion, irreversible.