... port 232 computer sending function.7. led advertising board supports wireless, USB and RS232/485.8. led advertising board supports synchronization with ... 250w/squ.mmax.power consumption400w/squ.mcontrol modeasynchronism 232 to USB(connect to the computer with the software)video modeDVI Video ... display communication modes you can opt for. (RS232/485, WIFI, USB, IR control, etc) Over the years, we have a ...