The process of downloading the AOpen AK77 Plus(A)-133 VIA Audio Driver 3.20b driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the AOpen AK77 Plus(A)-133 VIA Audio Driver 3.20b driver from the primary server - this is the manufacturer’s VIA 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 AOpen AK77 Plus(A)-133 VIA Audio Driver 3.20b diver.