The process of downloading the AOpen AK77 Pro(A) 4 IN 1 Driver 4.37V(A) 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 Pro(A) 4 IN 1 Driver 4.37V(A) driver from the primary server - this is the manufacturer’s Aopen 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 Pro(A) 4 IN 1 Driver 4.37V(A) diver.