MX DVI-D Male (18+1) To HDMI Female Socket Connector (MX-2705C)

DVI and HDMI carry the same underlying digital video signal, which is why a simple pin-adaptor like this one can bridge them directly without any active signal conversion involved. This adaptor takes a DVI-D (18+1 pin, digital-only) male plug on one side and presents a standard HDMI female socket on the other, so a graphics card or source device with only a DVI output can plug straight into an HDMI cable and drive an HDMI display. It's a far cheaper and simpler fix than buying a dedicated DVI-to-HDMI cable when a DVI cable is already on hand, and because the signal is digital-to-digital with no conversion involved, there's no quality loss introduced by the adaptor itself.