What is the difference between Single Link and Dual Link DVI ?
DVI Single link supports resolutions up to 1920×1080 at 60 Hz and has a maximum bandwidth of 165 Mhz. DVI Dual link supports resolutions up to 2048 x 1536 at 60 Hz and has a maximum bandwidth of 165 Mhz. So even a single link DVI cable will support a 1080p signal at 60 frames per second (148.5 Mhz). Dual link is really only required for very high resolution graphics applications but in practice there are more dual link cables on the market than single link. There is no problem using dual link cable in an application where only single link is required.