Yes but only with very specific drivers running either Windows 7 or OSX 10.7
The Firestudio 2626 is only compatible with Universal Control 1.2. If you are using current software with other Firestudio devices, you will not be able to daisy chain a Firestudio 2626.
The FireStudio 2626 has been discontinued and unsupported for many years. It will not work under current Operating Systems.
http://support.presonus.com/entries/21596094-FireStudio-2626-Why-won-t-my-FireStudio-2626-work-on-Windows-8-OSX-10-7-or-OSX-10-8-