A DVI to VGA adapter, by and large, is used to join a VGA/SVGA monitor to a DVI-I connection. Note this down that these adapters are normally used by users with older video cards in conjunction with a newer LCD display.
The Mini-DVI connector is used on Apple computers in the form of a digital alternative to the Mini-VGA connector. It was in the month of October 2008 when Apple did announce that the company was phasing it out for Mini DisplayPort. Apple is one of the most vital companies in the global arena.
Its size happens to be between the full-sized DVI and the tiny Micro-DVI and is found on the 12-inch PowerBook G4, Intel-based iMac, the MacBook Intel-based laptop, the Intel-based Xserve, and the 2009 Mac mini. Keep in mind that Mini-DVI connectors on Apple hardware are competent of carrying DVI, VGA, or TV signals by means of the use of adapters, detected with EDID (Extended display identification data) via DDC.
This connector is frequently used instead of a DVI connector so as to save physical space on devices. It does call for a Mini-DVI Adapter to communicate to another monitor. However, Mini-DVI does not support dual-link connections and for that reason, it cannot support resolutions higher than 1920×1200 @60Hz.
An assortment of types of Mini DVI Adapter is there. These include Apple DVI to VGA Adapter Apple part# [1](M9320G/A), Apple Mini-DVI to Video Adapter Apple part# [2](M9319G/A), Apple Mini-DVI to DVI Adapter (DVI-D) Apple part# [3](M9321G/B).