The process of downloading the MSI X99S Gaming 9 ACK VIA USB 3.0 Driver 4.70C driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the MSI X99S Gaming 9 ACK VIA USB 3.0 Driver 4.70C 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 MSI X99S Gaming 9 ACK VIA USB 3.0 Driver 4.70C diver.