A Video Graphics Array (VGA) connector is a three-row 15-pin DE-15 connector. The 15-pin VGA connector is found on many video cards, computer monitors, and high definition television sets. On laptop computers or other small devices, a mini-VGA port is sometimes used in place of the full-sized VGA connector.
DE-15 is also conventionally called RGB connector, D-sub 15, mini sub D15, mini D15, DB-15, HDB-15, HD-15 or HD15 (High Density, to distinguish it from the older and less flexible DE-9 connector used on some older VGA cards, which has the same shell size but only two rows of pins).
VGA connectors and cables carry analog component RGBHV (red, green, blue, horizontal sync, vertical sync) video signals, and VESA Display Data Channel (VESA DDC) data. In the original version of DE-15 pinout, one pin was keyed by plugging the female connector hole; this prevented non-VGA 15 pin cables from being plugged into a VGA socket. Four pins carried Monitor ID bits which were rarely used; VESA DDC redefined some of these pins and replaced the key pin with +5 V DC power supply.
The VGA interface is not engineered to be hotpluggable (so that the user can connect or disconnect the output device while the host is running), although in practice this can be done and usually does not cause damage to the hardware or other problems. However, nothing in the design ensures that the ground pins make a connection first and break last, so hotplugging may introduce surges in signal lines which may or may not be adequately protected against. Also, depending on the hardware and software, detecting a monitor being connected might not work properly in all cases.
A Female DE15 socket ( Videocard side)
Pin 1 - RED ( Red Video)
Pin 2 - GREEN (Green Video)
Pin 3 - BLUE (Blue Video)
Pin 4 - ID2/RES (Formerly Monitor ID bit 2,reserved since E-DDC
Pin 5 - GND Ground (Hsync)
Pin 6 - RED_RTN (Red Return)
Pin 7 - GREEN_RTN (Green Return)
Pin 8 - BLUE_RTN (Blue Return)
Pin 9 - KEY/PWR - (formerly key,now +5V,DC
Pin 10 - GND - Ground (VSync,DDC)
Pin 11 - ID0/RES (formerly Monitor ID bit 0,reserved since E-DDC)
Pin 12 - ID1/SDA (formerly Monitor ID bit 1 ,data since DDC2)
Pin 13 - HSync (Horizontal sync)
Pin 14 - Vsync (Vertical sync)
Pin 15 - IS3/SCL (formerly Monitor ID bit 3,clock since DDC2)
Note : The image and table detail the 15-pin VESA DDC2/E-DDC
connector; the diagram’s pin numbering is that of a female connector
functioning as the graphics adapter output. In the male connector, this pin
numbering corresponds with the mirror image of the cable’s wire-and-solder
side.
***Note : Color and Figure may change without prior notice