It can change the signal of “S” terminator of video into VGA signals line-by-line. Let’s your monitor change into flicker free display. This flicker free display is good display. It also can be connected to VCD / DVD / webcam / set-top box etc. It will make your monitor be like digital TV.Advanced scan frequency improves the technique, refresh rate can be easily switched between 60-75Hz, while the pictures don’t flick. Resolving capability can be easily switched