What is a MUX board? June 6, 2018 22 0 A What is a MUX board? A MUX board is an adapter used to adapt a SATA drive so it will work in a SAS drive specific machine. Category: Customer Questions Leave a Reply Cancel replyYou must be logged in to post a comment. Back to Top GET THE LATEST NEWS IN YOUR INBOX Don't worry we don't spam - EVER PreviousCan I use a SATA drive in a SAS machine? NextDo I need to upgrade my network to use a NAS?