... of high resolution digital visualizer, control boxes, matrix and VGA splitter. Product advantages :1,2*8 VGA/XGA/SXGA/QXGA signal ... -power high-bandwidth chip, the perfect image is kept originally.5,Transmission distance:30-100 meters .6,Power Supply:DC 9V ... RGB switcher and splitterBandwidth 440MHzHigh-quality aluminum alloy shell VGA splitter,VGA switcher,CH218