SDVO (Serial Digital Video Out) is a proprietary
Intel technology introduced with their 9xx-series of
motherboard chipsets. SDVO makes it possible to use a 16-lane
PCI express slot to add additional video signalling interfaces such as
VGA and
DVI monitor outputs,
SDTV and
HDTV television outputs, or TV tuner inputs to a system board containing an integrated Intel 9xx-series graphics processor. SDVO adaptor cards are variously designated as ADD2 (advanced digital display, second generation) or the more feature-rich MEC (media expansion card). MEC is sometimes designated as ADD2+ in Intel documents.
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