Cable blue is also used in video applications. The most common is the transmission of VGA calculator video signals. Because the pair is not equal to the interpupillary distance, the actual lengths are not equal, resulting in skewing, which is reflected in the image and appears subtle. Color mis-synchronization and ghosting, this image shift can be compensated by double-ended converters of different lengths or twisted pair conversions with very close spacing, called ZERO SKEW or SKEW LESS, but this line cannot be used as a network cable