Updated 26 May 2021
There are two types of numbers.
1. A driver specific number. i.e. 2.8.4, etc...
2. An installer specific number. i.e. 1.2, etc...
The reason for this seeming discrepancy is that PreSonus created a new "combination" driver when our latest AudioBox VSL products were released. This driver, named AudioBox 1.0, contains the driver files for all AudioBox units, including the older AudioBox USB. The installer detects the current AudioBox device plugged into the computer and installs the appropriate driver.
Therefore, the new AudioBox driver installer, version 1.0 and above, actually installs the older 2.8.4 driver files for the AudioBox USB.
Please contact PreSonus Technical Support by creating a Support Ticket at My.PreSonus.com for further assistance.