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by adrian_b
659 days ago
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The DisplayPort connector includes a supply voltage. While it is weaker than in USB, it is strong enough to provide power to an active DisplayPort to HDMI converter, which can have the appearance of a video cable that can connect a DisplayPort source to an HDMI sink. On one of the HDMI pins there is a DC voltage, but it has other purposes and it is too weak to provide power for a video converter. This is why an HDMI to DisplayPort converter always requires an additional external power supply. |
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