DVI VGA Adapter

DVI VGA adapter is applicable to fetch video information from DVI graphics card and then output them to computer monitors, televisions or projectors through VGA port. In other words, assume that now you want to connect your DVI equipped video card to VGA enabled display directly. The most economical solution available is DVI to VGA adapters or a DVI to VGA cable.

Options of DVI to VGA

If you have a TV with a VGA input, you want to connect it to your computer. But the video card of your computer only comes with the DVI ports. What would be the solution then? Actually generally there are three options available as follows:

DVI VGA Adapter DVI to VGA converter DVI to VGA Cable DVI to VGA

1. DVI to VGA display adapter + VGA cable

2. DVI to VGA cable

3. DVI to VGA converter

All these three options can get the job done. The first two make no difference and the last one makes sense especially when you need a DVI-D to VGA adapter. And compared to the second option, the first one would be a little bit cheaper. But the second one is more convenient.

What is DVI to VGA adapter designed for?

Due to the rapid development in the computer industry today, the product replacement becomes an inevitable trend. This will lead to interface confusion because a variety of new interfaces keep introduced between old and new equipment. DVI to VGA adapter is one of these products, which is designed for you to solve the incompatible problems that occur between devices that adopt different connectors.

Now the fact is that a lot of video cards are not equipped with VGA connector any more. In particular those high-end graphics cards only come with digital connectors like HDMI and DVI. Some would provide both one VGA and one DVI. Or some would provide simply only dual-DVI. And if you happen to have low-end LCD and CRT monitor with only VGA, a DVI VGA adapter is needed to achieve the conversion.

Mechanism of DVI VGA adapter

The DVI of a DVI VGA adapter refers to the analog DVI. So here the DVI VGA adapter means a DVI-I to VGA adapter rather than a DVI-D VGA adapter because there is the difference between analog signal and digital signal in DVI interface. The VGA signal belongs to analog signal so that the conversion can be achieved as they are the same kind of signal. Therefore, when it comes to VGA to DVI adapter, the VGA analog signal can only adapt to DVI analog signal.

There are several kinds of DVI analog signal interfaces, including DVI (24+5), DVI (18+5), and DVI (12+5) and so on. These connectors are defined as analog DVI to VGA connector by manufacturers. DVI to VGA adapters are used in the connection between VGA enabled display devices and DVI enabled computers. Simply, if your display devices such as monitors and plasma TV come with VGA port while the video output of your computer is through DVI-I port, naturally they can not be connected directly. In such case, a DVI to VGA display adapter is needed to achieve the conversion between them.

Regular DVI to VGA display adapter

Although there are special types of adapters like mini DVI to VGA adapter, the most common one is DVI female to VGA male adapter or the opposite. Of course you can find others if you would like a different combination. The usual specification is DVI-I (24+5) (male) to VGA 15-pin HD D-sub (female) connector, with gold-plated pins and nickel-plated shell.

What’s more, this DVI I VGA adapter is usually in line with SONY SS-259 standard and adopts the materials that meet ROHS standards of environmental protection. The high-end products are manufactured with fine workmanship. A quality DVI VGA adapter can withstand 300V voltage test and has excellent ability of anti-electromagnetic interference.