... operate 3.manage multi displays led wireless controller This A20 full color controller, maximum pixels 320x128, has 4096 ... US. First please see the parameters of A20-WCDMA: technical parameters of A20-WCDMAmax pixels320x128HUBStandard hubLED screen's colorfull colorstorage500MBgrey ... of stockLED data pictures :card picture: led wireless controller A20 WCDMA for full color modules, supporting 3G, GPRS ...