There are several types of cable on the market that are used to connect computers with video monitors. Not all cables are the same. Some cables are limited in their data-carrying capacity and cannot support high-resolution monitors. Some are suitable to be used as regular, everyday cables while others are intended to be used as a back-up or with a secondary video monitor.

There are four types of cables commonly used with video monitors:

USB cables

USB cables are probably the most widely used cable in computing. They are well suited for connecting peripherals such as microphones, printers and storage devices. Though USB cables may work with many monitors, they support a maximum resolution of 1024×768, making them unsuitable for many newer monitors. USB cables are ideal for a back-up or to be used with a secondary monitor.

Standard VGA

For many years, VGA cables were the standard used with most computers. They work well, but like USB cables they are limited in their capacity to deliver high resolution. Monitors connected with VGA cables have a maximum resolution of 640×480 which make them impractical for more modern monitors with much higher resolution.

VGI

 These cables look very similar to VGA cables but deliver considerably better performance. VGI cables have the ability to deliver high image resolution and video resolution up to 2560×1600. When used with LCD monitors, VGI cables produces a minimum of interference and noise.

HDMI

HDMI cables are the most popular and widely used video cables today. In addition to being compatible with computer monitors, HDMI cables may also be connected to televisions and home theatre systems. HDMI cables deliver a high amount of resolution and produce little interference. HDMI cable deliver information digitally, removing the need for error and static introducing conversions from digital to analog and back again. Because of this, HDMI cables of different quality each delivery a high quality signal for most applications. Longer cables used to connect widely separated devices may introduce some interference; for these applications the highest quality cable available is recommended. HDMI 2.0 is the most current version of the cable, as of January 2015.

For most applications, the HDMI 2.0 cable offers the highest resolution and best quality among video monitor cables. A USB cable may be handy to have as a backup or to use with a secondary monitor, but for regular use, HDMI is the best. In addition to its high quality, the compatibility of the HDMI cable with most modern devices makes it the best choice for meeting most users’ needs.