In late 2013, Apple began shipping their new flagship Mac Pro models. These machines are based on a newer PCIe architecture which changes the way they work with UAD-2 and Apollo hardware.
Unfortunately, UAD-2 SOLO/DUO/QUAD PCIe cards cannot be made to work with the late-2013 Mac Pro. Click here for more information.
The UAD-2 OCTO PCIe card requires a qualified Thunderbolt-to-PCIe chassis for compatibility with the late-2013 Mac Pro.
For UAD-2 Satellite and Apollo / Apollo 16 owners using Firewire, the Apple Thunderbolt to FireWire Adapter can be used with the late-2013 Mac Pro on macOS Catalina or earlier.
UA Products that are not compatible with the Late-2013 Mac Pro:
Apollo Solo Thunderbolt
Apollo Solo USB
Apollo Twin USB
Satellite USB QUAD
Satellite USB OCTO
UAD-2 SOLO PCIe
UAD-2 DUO PCIe
UAD-2 QUAD PCIe