via USB or Thunderbolt, go to the "Devices" tab and click "Update" or "Install" to download the specific and Driver bundle for your unit. System Requirements
If you cannot find the old installer on the website (Antelope occasionally purges old links), contact support directly via a ticket. Ask for the "Orion 32 Legacy Driver v4.5" (or the last stable build). They will usually send you a private Dropbox link. antelope orion 32 control panel download
The Antelope website seems to have removed legacy products, and I only see installers for the Orion Studio Synergy Core and newer interfaces. The old download section is redirecting. via USB or Thunderbolt, go to the "Devices"