Symphony I/O Mk II Thunderbolt
Release 3.5

Now compatible with macOS Catalina

Symphony I/O Mk II Thunderbolt Release 3.5 is now available and compatible with macOS Catalina 10.15

Download and install Symphony I/O Mk II Thunderbolt Release 3.5

Please read all release notes carefully before installing

  • This Release adds support for macOS 10.15 Catalina.
  • It only updates the Thunderbolt AIM (even if you also have Pro Tools HD or Dante options cards installed).

System Requirements for Mac:

  • Apple Mac computer with built in Thunderbolt connector
  • macOS X 10.12.6 or higher, OS X 10.15.1 supported
  • 4 GB minimum RAM, 8 GB or higher recommended

Note: DO NOT install this software if your Symphony I/O Mk II has no Thunderbolt port.