What is VGA?
Video Graphics Array
VGA has been the standard monitor or display interface used in most PCs for many years. VGA is being superseded by new technology such as HDMI and DisplayPort, but still remains popular. Therefore, if a monitor is VGA compatible, it should work with many new computers and almost all older ones. The VGA standard was originally developed by IBM in 1987 and allowed for a display resolution of 640×480 pixels. Since then, many revisions of the standard have been introduced. The most common are Super VGA (SVGA), which allows for resolutions of 800×600, and XGA at 1024×768. A standard VGA connection has 15 pins and is shaped like a trapezoid.
What is the maximum length of a VGA cable?
In short – the total cable length of the source to screen should be no more than 7.5m. However, It was originally designed for very short runs of a metre or so to connect a PC to a screen, but due to the evolution of computer technology, the most common use is to connect a laptop to a screen in a typical boardroom or meeting room. This has presented a challenge for AV companies as well as Soft Wiring specialists like ourselves at OE Electrics. As a result, we have had our own VGA cable made to exacting specifications and can supply at either 1.8m, 3m or 5m lengths. We recommend a total cable length of the source to screen no more than 7.5m. This includes the cable used to connect the source to our unit.