VGA Monitor Connector (HDD15 Male)

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  Modern VGA or multisync monitors use a high-density 15-pin D-connector.
  This HDD15 connector is the same overall size as a DB9, and in fact early
  VGA monitors used DB9 connectors. After a while, the connector standardized
  on the HDD15, probably because many people were damaging their new VGA
  monitors by connecting them to MDA (mono) video cards.

  On some cables, pin 9 is not only not connected, but not even present in
  the connector.

  Male HDD15 VGA Connector
                      _____________________________
                     |                             |
                     |    1    2    3    4    5    |
                      |                           |
                      |  6    7    8    9   10    |
                       |                         |
                       |  11   12   13   14   15 |
                        |_______________________|

  Female HDD15 VGA Connector
                      _____________________________
                     |                             |
                     |    5    4    3    2    1    |
                      |                           |
                      |  10   9    8    7    6    |
                       |                         |
                       |  15   14   13   12   11 |
                        |_______________________|

   Pin 1: Red Video
   Pin 2: Green Video
   Pin 3: Blue Video
   Pin 4: Ground
   Pin 5: Unused
   Pin 6: Red Ground
   Pin 7: Green Ground
   Pin 8: Blue Ground
   Pin 9: Unused
  Pin 10: Ground
  Pin 11: Ground
  Pin 12: Unused
  Pin 13: Vertical Sync
  Pin 14: Horizontal Sync
  Pin 15: Unused

  Older Female DB9 VGA Connector
                      _____________________________
                     |                             |
                     |                             |
                      |   5    4    3    2    1   |
                      |                           |
                       |     9     8    7    6   |
                       |                         |
                        |_______________________|

  Pin 1: Red Video
  Pin 2: Green Video
  Pin 3: Blue Video
  Pin 4: Vertical Sync
  Pin 5: Horizontal Sync
  Pin 6: Red Ground
  Pin 7: Green Ground
  Pin 8: Blue Ground
  Pin 9: Unused