High Quality Content by WIKIPEDIA articles! DMS-59 is a 59-pin electrical connector generally used for computer video cards. It provides two DVI or VGA outputs on a single connector. An adapter cable is needed for conversion from DMS-59 (digital) to DVI (digital) or VGA (analog), and different types of adapter cables exist. The connector is four pins high and 15 pins wide, with a single pin missing from the bottom row, in a D-shaped shell, with thumbscrews.