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Yes it does as it's powered by a PCIE lane, without the power you don't get any signal.
Sorry, there was a problem. Please try again later.If your trying to just watch tv through your computer but noit trying to capture anything yes your pc needs to be oin. The capture card will not capture anything until you go to the software and start the capture.
Sorry, there was a problem. Please try again later.Hi Q, The card would require the system to be powered on. -Brian
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