What is DVI Port

VGA successor: The DVI port is used to transfer digital images from equipment such as a computer and a modern projector, monitor, or television. DVI is the abbreviation for “Digital Visual Interface” which in Spanish means “Digital Visual Interface” was created by the Digital Display Working Group (DDWG) in 1999 to accommodate analog and digital monitors with a single connector.

Interesting: What is the difference between VGA, DVI and HDMI

VGA successor: DVI was developed as a standard to connect LCD monitors to computers. Using a DVI port, a digital signal that is sent to an analog monitor is converted to an analog signal. If the monitor is digital, such as an LCD, no conversion is necessary. All DVI equipment can ideally transmit a signal at 4.6 meters (15 feet) in length with 1920 × 1200 resolution. However, many manufacturers have much stronger cards that can support distances of approximately 15 meters (50 feet) with 1920 × 1200 resolution. 1280 × 1024 or less. To get a quality signal over long distances, you should consider using a DVI signal booster.

VGA successor: DVI is the direct successor of the VGA port, specifically it corresponds to an intermediate point between the quality of VGA and HDMI. Many monitors have a built-in DVI connection, and many video adapters include a DVI port instead of the VGA port. In addition to being used as the standard computer interface, the DVI standard was for a short time the preferred digital transfer method for high-definition televisions (HDTVs) and other high-quality video equipment. Likewise, even some DVD players offered DVI outputs in addition to the analog video output. Although at present, the HDMI interface is replacing DVI, as it allows images with higher resolution quality than DVI.

VGA successor: DVI handles bandwidth greater than 160 MHz, supporting UXGA and HDTV with a single link set. Higher resolutions can be supported with a double set of links.

DVI can come in three different configurations:

  1. DVI-D (designed for digital signals, single-link or dual-link)
  2. DVI-A (designed for analog signals)
  3. DVI-I (designed for both analog and digital signals, combines digital and analog technology in the same connector, can be single or dual-link)

VGA successor: DVI-D and DVI-I offer additional pins for a second data link. This allows resolutions up to 2560×1600, which can be used by many extended graphics cards. A connector with extra pins is known as DVI-DL (Dual Link).

The pin of a DVI-I connector is wider than DVI-D, even removing the DVI-I analog pins, it is not possible to connect a DVI-I male to a DVI-D female. However, it is possible to connect a male DVI-D cable to a female DVI-I connector. Many flat panel LCD monitors only have a DVI-D connection.

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