产品名称：BLACKBOXACX300-U2型号：ACX300-U2品牌：BLACKBOX描述：Firmwareadd-onforthetheServSwitchCATxDVI/HDMI+USBExtenders(ACX300).FirmwareisforaUSB2.0transferfileupgrade.ConnectUSB2.0high-speedmassstoragedevicesatremoteend.规格：)