is possible to install digi 003 drivers on os catalina?

Check with the fine folks at Avid for further info, but I suspect those old drivers are 32-bit only, and Catalina and newer macOS versions disallow anything but 64-bit software. If Avid have not updated those drivers or provided replacements, then you are out of luck, my friend.

Please see this from the Avid Knowledge Base: https://avid.secure.force.com/pkb/articles/download/Digi-002-003-Drivers

I had success following the instructions in this video: https://www.youtube.com/watch?v=F0jq8CXJRBU&t=55s

Yes, it states it's for Big Sur, but I followed these for Catalina 10.15.7 and it worked. Be sure to do all of the reboots it suggests. Granted, Catalina doesn't work with my version of PT11, but I can still use the Digi to communicate with Garageband and use it for my audio in/out.

[Image Edited by Moderator to Remove Serial Number]


The digital 003 website indicates that the last system it's compatible with is El Capitan, 10.11.6.

You should contact their Customer Support to see if they have drivers for Catalina.