15針VGA顯示接口引腳定義
VGA 是 Video Graphics Adapter(Array) 的縮寫，信號類型為模擬類型，顯示卡端的接口為 15 針母插座：
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Pin Name Description Pin Name Description 1 RED Red Video (75 ohm, 0.7 V p-p) 9 KEY Key (No pin) 2 GREEN Green Video (75 ohm, 0.7 V p-p) 10 SGND Sync Ground 3 BLUE Blue Video (75 ohm, 0.7 V p-p) 11 ID0 Monitor ID Bit 0 4 ID2 Monitor ID Bit 2 12 Monitor ID Bit 1 5 GND Ground 13 HSYNC or CSYNC Horizontal Sync (or Composite Sync) 6 RGND Red Ground 14 VSYNC Vertical Sync 7 GGND Green Ground 15 ID3 or SCL Monitor ID Bit 3 8 BGND Blue Ground ? ? ?