About Mini DisplayPort to VGA Adapter
Video Graphics Array is an analogue display format which has been around since 1987. The term is associated with the VGA connection port, which has been standardised since about 1990 as the familiar DE-15 three-row, 15-pin VGA connector found on many video cards, monitors and HD televisions.
Successors to VGA including SVGA and UVGA, use the same DE-15 port, but smaller devices sometimes feature a smaller variant, mini-VGA. Very old VGA items might feature the earlier, two row, nine-pin port. The DVI port, which has both analogue and digital connectors, was designed as a digital replacement for VGA and many monitors, televisions and DVD or Blu-ray players have both VGA and DVI ports. DisplayPort is a newer standard digital connection port developed by the Video Electronics Standards Association in 2006 to replace VGA, DVI and FPD-Link with a more standardised digital interface.
The Mini DisplayPort is a miniaturised version of DisplayPort created by Apple in 2008. The simple, flat, digital-style plug is about 7.5 mm by 4.5 mm. In 2011 Apple released Thunderbolt, a smaller, non-locking version which uses the same connection but also allows PCI Express data connections. Mini DisplayPort is a feature of many recent Apple computers as well as the Apple LED cinema display. PC manufacturers including Asus, Toshiba, HP, Microsoft, Lenovo and Dell also use this connector.
If you have peripherals which are only connectible via a DE-15 VGA port, you will need a Mini DisplayPort to VGA adapter. These passive adapters typically come in the style of a simple connecting cable with a DE-15 (male) plug at one end and a Mini DisplayPort (male) plug at the other.