The application for DMS-59 is to support a higher density of video displays, in a similar amount of connector space to a DVI connector. DMS-59 supports two DVI Single Link digital channels or two VGA analog channels from a single connector. The compact size lets a half-height card support two high resolution displays, and a full-height card (with two DMS-59 connectors) up to four high resolution displays.
| Signal Name | Input/Output | Signal Name | Input/Output | ||
| 1 | GND | Ground | CASE | GND | Ground |
| 2 | VGA1_RED | Out | 31 | DVI1_TX CLK- | Out |
| 3 | VGA1_BLUE | Out | 32 | DVI1_TX CLK+ | Out |
| 4 | GND | Ground | 33 | DVI_TX0 GND | Ground |
| 5 | +5V | Power | 34 | DVI_TX1 GND | Ground |
| 6 | VGA1_SCL | I/O | 35 | DVI_TX2 GND | Ground |
| 7 | VGA1_SDA | I/O | 36 | DVI1_HPD | In |
| 8 | GND | Ground | 37 | Reserved | Reserved |
| 9 | VGA2_SDA | I/O | 38 | Reserved | Reserved |
| 10 | VGA2_SCL | I/O | 39 | Reserved | Reserved |
| 11 | +5V | Power | 40 | DVI2_HPD | In |
| 12 | GND | Ground | 41 | DVI_TX2 GND | Ground |
| 13 | VGA2_BLUE | Out | 42 | DVI_TX1 GND | Ground |
| 14 | VGA2_RED | Out | 43 | DVI_TX0 GND | Ground |
| 15 | GND | Ground | 44 | DVI2_TX CLK- | Out |
| 16 | DVI2_TX0+ | Out | 45 | DVI2_TX CLK+ | Out |
| 17 | DVI2_TX0- | Out | 46 | GND | Ground |
| 18 | DVI2_TX1+ | Out | 47 | VGA2_GREEN | Out |
| 19 | DVI2_TX1- | Out | 48 | Reserved | Reserved |
| 20 | DVI2_TX2+ | Out | 49 | DVI2_CLK GND | Ground |
| 21 | DVI2_TX2- | Out | 50 | VGA2_HSYNC | Out |
| 22 | Reserved | Reserved | 51 | VGA2_VSYNC | Out |
| 23 | Reserved | Reserved | 52 | GND | Ground |
| 24 | Reserved | Reserved | 53 | Reserved | Reserved |
| 25 | DVI1_TX2- | Out | 54 | GND | Ground |
| 26 | DVI1_TX2+ | Out | 55 | VGA1_VSYNC | Out |
| 27 | DVI1_TX1- | Out | 56 | VGA1_HSYNC | Out |
| 28 | DVI1_TX1+ | Out | 57 | DVI1_CLK GND | Ground |
| 29 | DVI1_TX0- | Out | - | Blocked | Blocked |
| 30 | DVI1_TX0+ | Out | 58 | VGA1_GREEN | Out |
The DMS-59 connector is used by ATI, NVIDIA, and Matrox for video cards sold in Lenovo Thinkcentres, Viglen Genies and Omninos, Dell, HP, and Sun computers. Some confusion has been caused by the fact that vendors label cards with DMS-59 as supports DVI, but the cards do not have DVI connectors built-in. Such cards, when equipped with only the VGA connector adapter cable, cannot be connected to a monitor with only a DVI-D input. A DMS-59 to DVI adapter cable needs to be used with such monitors.
An adapter cable is needed for conversion from DMS-59 to DVI or VGA, and different types of adapter cables exist. The connector is four pins high and 15 pins wide, with a single pin missing from the top row, in a D-shaped shell, with thumbscrews.
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