... function, can support RGB,DVI, HDTV, S-VIDEO, NTSC/PAL format signal input resolution, from 640x480 ... to configure the display unit.4.RGB and video windows can be any roaming, overlay, scaling. ... In the splicing screen, all the RGB and Video windows can be any roaming, overlay, zoom ( ... 4 windows, length ratio to be adjusted.Hot-Swap chassis structure, high integration, low power consumption. ...