DMS-59 (Dual Monitor Solution, 59 pins) was generally used for computer

video card A graphics card (also called a video card, display card, graphics adapter, VGA card/VGA, video adapter, display adapter, or mistakenly GPU) is an expansion card which generates a feed of output images to a display device, such as a computer mo ...

s. It provides two

Digital Visual Interface Digital Visual Interface (DVI) is a video display interface developed by the Digital Display Working Group (DDWG). The digital interface is used to connect a video source, such as a video display controller, to a display device, such as a com ...

(DVI) or

Video Graphics Array Video Graphics Array (VGA) is a video display controller and accompanying de facto graphics standard, first introduced with the IBM PS/2 line of computers in 1987, which became ubiquitous in the PC industry within three years. The term can n ...

(VGA) outputs in a single connector. A Y-style breakout cable is needed for the transition from the DMS-59 output (digital + analogue) to DVI (digital) or VGA (analogue), 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. , this adapter cable was listed as obsolete by its primary vendor Molex.tagged as Obsolete The advantage of DMS-59 is its ability to support two

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displays, such as two DVI Single Link digital channels or two VGA analog channels, with a single DVI-size 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. The DMS-59 connector is used by e.g.

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(

AMD FireMV AMD FireMV, formerly ATI FireMV, is brand name for graphics cards marketed as a Multi-Display 2D video card, with 3D capabilities same as the low-end Radeon graphics products. It competes directly with Matrox professional video cards. FireMV cards ...

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and

Matrox Matrox Graphics, Inc. is a producer of video card components and equipment for personal computers and workstations. Based in Dorval, Quebec, Canada, it was founded in 1976 by Lorne Trottier and Branko Matić. The name is derived from "Ma" in Mat ...

for video cards sold in some Lenovo ThinkStation models,

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Genies and Omninos, Dell, HP and

Compaq Compaq Computer Corporation (sometimes abbreviated to CQ prior to a 2007 rebranding) was an American information technology company founded in 1982 that developed, sold, and supported computers and related products and services. Compaq produced ...

computers. DMS-59 connectors also appeared on

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Computers. Some confusion has been caused by the fact that vendors label cards with DMS-59 as "supports DVI", but the cards have no DVI connectors built-in. Such cards, when equipped with only a 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. The DMS-59 connector is derived from the LFH-60 Molex

low-force helix A low-force helix (LFH-60) is a 60-pin electrical connector (four rows of 15 pins) with signals for two digital and analog connectors. Each of the pins is twisted approximately 45 degrees between the tip and the plastic frame which holds the pin ...

connector, which could be found in some earlier graphics cards. These ports are similar to DMS-59, but have all 60 pins present, whereas DMS-59 has one pin (pin 58) blocked. A connector plug with all 60 pins (such as a Molex 88766-7610 DVI-I splitter) does not fit into a properly keyed DMS-59 socket. A Dual-DVI breakout cable can be used in connection with two passive DVI-to-HDMI adapters to feed modern displays with HDMI inputs, while using a DMS-59 graphics card, since the DVI signals are electrically identical to HDMI signals and do not require any kind of conversion.

References

General

External links