onbon bx - Onbon bx-5ql, usb controller, 2 hub75, 4 hub08,support 256*65 pixel, gray grade async controller, cheapest full color control

onbon bx
 - Onbon bx-5ql, usb controller, 2 hub75, 4 hub08,support 256*65 pixel,  gray grade async controller, cheapest full color control

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onbon bx - Onbon bx-5ql, usb controller, 2 hub75, 4 hub08,support 256*65 pixel, gray grade async controller, cheapest full color control