The same VGA cable can be used with a variety of supported VGA resolutions, ranging from 640×350px @70 Hz (24 MHz of signal bandwidth) to 1280×1024px (SXGA) @85 Hz (160 MHz) and up to 2048×1536px (QXGA) @85 Hz (388 MHz). There are no standards defining the quality required for each resolution but higher-quality cables typically contain coaxial wiring and insulation that make them thicker.
what is VGA 3+6 cord?
real 3+6 cord
VGA cable (Male to Male)
Type A: 3 meters
Type B: 5 meters

Type C: 15 meters
Type D: 20 meters