If you need to download a driver for a PreSonus device; the most current release, beta and legacy drivers are available on our website.
The most current drivers will be listed at the top of the downloads page, followed by beta drivers and then below that you will find older legacy versions of the driver in case the current or beta releases are not working.
http://www.presonus.com/support/downloads
Scroll to the listing for your device and then browse to the download tab for a link to the current or legacy version of the driver for your operating system.
Please read the section for your device very carefully to ensure that you download and install the correct driver for your system. Also take note of any release notes, download them and read them as there may be important information enclosed about your device and/or operating system
If you need a driver that is not listed in the downloads section for a particular device with in the website; please contact Tech Support at support.presonus.com, log into your account and then submit a new ticket for help with your issue.