I am running High Sierra on a flashed to 5,1 2009 Mac Pro without problem. I have an old iSight camera which I'd like to use with it, by connecting the camera to one of the Mac Pro's firewire 800 ports via a firewire 400 to 800 cable. Will the High Sierra Mac recognize the iSight? Does anyone know where I can find specs on this old webcam? I don't remember if there is a built in mic or not. Thanks!