VGA ports have been around since the late 1980s and they still remain present on laptops. While DVI and HDMI are two of the clear successors of the aging connector, having a VGA port on laptops is still useful especially if you are using the laptop for presentation purposes since many affordable projectors still rely on VGA. But if your laptop may not be able to connect to one of those new digital LCD or LED monitors if VGA and HDMI ports are missing. Fortunately, all you need is a VGA to DVI-D converter and you are all set. This converter can also be useful if you have an old computer and you don’t want to shell out extra money on a video card or motherboard with a DVI port.
VGA to DVI-D converters are fairly cheap but you should check out the pricier converter boxes as well because some of them let you connect both a VGA monitor as well as a DVI-D monitor to a computer. This means that an old computer can have 2 screens or a laptop can have 3 screens. This should boost your productivity significantly once you get used to things.
As long as you get a good model, the whole setup process should be painless. All you have to do is to make the necessary connections from the monitor to the converter to the system. From there, you can enjoy the same screen resolutions as if the monitor is directly connected to a DVI-D port.
When you are on the go, it is best to take the VGA to DVI-D converter too in case you want to use older projectors with newer computer systems without a VGA port.
Information provided by Lindy USA. Provider of VGA to DVI cables and USB Extension Cables