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Mini-DIN connector. The mini-DIN connectors are a family of multi-pin electrical connectors used in a variety of applications. Mini-DIN is similar to the larger, older DIN connector. Both are standards of the Deutsches Institut fÃ¼r Normung, the German standards body. The color-coded PS/2 connection ports (purple for keyboards and green for mice) on the rear of a personal computer.
up vote 2 down vote accepted. The only difference between single and double DIN is the size of the unit. However double DIN units often have added features like touch screens, dvd, and navigation features which require the extra space for mounting.