The process of downloading the PreSonus FireStudio Universal Control / Driver 1.2.2715 / 3.5.5 for Mac OS driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the PreSonus FireStudio Universal Control / Driver 1.2.2715 / 3.5.5 for Mac OS driver from the primary server - this is the manufacturer’s PreSonus official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the PreSonus FireStudio Universal Control / Driver 1.2.2715 / 3.5.5 for Mac OS diver.