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This page is dedicated to UAD-2 PCIe card compatibility & support. The following information is subject to change and may not always be up to date due to OS and DAW updates, or other factors beyond our control.

Last Updated: April 15, 2014

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Latest News & Updates Support Videos
General Information System Requirements
Motherboard Compatibility Thunderbolt Chassis Compatibility
Frequently Asked Questions

Latest Technical News

Please review the information on this page carefully before installing or using UAD-2 PCIe cards.

  • For the latest version of UAD-2 PCIe card software for Mac and Windows, click here. For a complete list of software changes and detailed release notes, see the UAD version history.
  • At this time, Apollo Twin cannot be installed or used concurrently with UAD-2 PCIe or UAD-2 Satellite. We are working on compatibility with these devices for a future release.
  • (Mac) For important information about Apple Mac Pro (Late 2013) compatibility, click here.
  • All UAD Powered Plug-Ins are 64-bit compatible in UAD v6.4 and higher.
  • Specific Thunderbolt-to-PCIe chassis are compatible with UAD-2 PCIe cards.
  • UAD-2 OCTO cards require UAD v6.3.1 or higher. Running older UAD versions when OCTO is installed could cause the system to stop responding.

Support Videos


Videos to help you get started with UAD-2

Check out our support videos to help you set up and use UAD-2:

General Information

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Other Information

System Requirements

    Minimum UAD System Requirements

    For information about Apple Mac Pro (Late 2013) compatibility, click here.

    • (Win) Windows 7 64-Bit Edition w/SP1
    • (Mac) OS X 10.8 Mountain Lion or 10.9 Mavericks
    • 2 gigabytes available disk space
    • Available PCI Express (PCIe) slot for each UAD-2 card
    • Available FireWire 800 port* for UAD-2 Satellite, Apollo, or Apollo 16
    • 1024 x 800 minimum display resolution
    • Internet connection to download software and authorize UAD plug-ins
    • Compatible VST, Audio Units, RTAS, or AAX plug-in host application software

    *On Windows systems, Apollo, Apollo 16, and UAD-2 Satellite require a qualified PCIe-to-FireWire adapter card. See the product support pages for details: Apollo | UAD-2 Satellite

    Operating systems not listed above are unqualified. Although unqualified operating systems may work, they are not tested and not supported by UA. Prior UAD software for older operating systems and discontinued UAD products is available in the UAD software archives.


UAD-2 (PCIe format) Specifications

  • High-bandwidth x1 PCI Express card (PCIe 2.0 compatible)
  • UAD-2 SOLO: low-profile, half-height, short PCIe card (4.7” x 2.5” when fully seated)
  • UAD-2 DUO/QUAD/OCTO: full-height, short PCIe card (6.6” x 4.2” when fully seated)
  • 1, 2, 4, or 8 Analog Devices SHARC floating-point processors
  • Multi-device support for up to 4 UAD-2 devices in one system
  • Supports VST, RTAS, and Audio Units plug-in formats
  • 44.1, 48, 88.2, 96, 176.4, and 192 kHz sample rate support
  • 14-day full function demo for all plug-ins; try before you buy

Motherboard Compatibility

Listed below are all currently known PC motherboard compatibility issues with the UAD. No other hardware issues are known at this time. For information on PC software issues, please review the UAD software release notes.

Note: If you already have one of the below motherboards, we recommend trying the latest BIOS update to find out if any incompatibility issues have recently been fixed.

Dell Precision Series 4xx / 6xx (specifically 470 / 670) are incompatible with UAD-2 PCIe

Symptom: Inability to recognize UAD-2 Hardware ID preventing registration and major performance issues preventing any use of the cards.

The UAD-2 is incompatible with the Dell Precision Series 4xx / 6xx (specifically 470 / 670) systems. We do not recommend using the UAD-2 with these systems.

Lenovo X200 / LCS2 is incompatible with UAD-2 SOLO/Laptop

Symptom: Complete system freeze.

We've had user reports of incompatibilities with SOLO/Laptop and this system. We are looking into the issue, and currently do not recommend this configuration until a resolution is found.

Intel DX58SO motherboard is incompatible with UAD-2 PCIe

Symptom: Opening the UAD Meter & Control panel application, or attempting to open a UAD plug-in while a UAD-2 is installed, will completely freeze the system or cause a BSOD.

The UAD-2 is incompatible with the Intel DX58SO motherboard. We recommend choosing a different motherboard for use with UAD-2, as there are currently no workarounds.

Thunderbolt-to-PCIe Expansion Chassis Compatibility

About Thunderbolt-to-PCIe Expansion Chassis Compatibility

UAD software v6.3.1 (and higher) enables the operation of UAD-2 PCIe cards with Thunderbolt-to-PCIe expansion chassis products. Specific chassis products (listed below) are tested in-house to verify compatibility with UAD systems.

Thunderbolt Chassis Operation Notes

  • Thunderbolt is compatible under Mac OS X only.
  • For important information about Apple Mac Pro (Late 2013) compatibility, click here.
  • For optimum UAD performance with Thunderbolt-to-PCIe expansion chassis products, connect and power all Thunderbolt devices before the computer is powered on.
  • For optimum Thunderbolt performance, Mac OS X 10.8.2 Mountain Lion (or higher) is recommended.
  • For Thunderbolt 2 information, click here.

Tested Thunderbolt-to-PCIe Expansion Chassis Models

The specific Thunderbolt-to-PCIe expansion chassis models from manufacturers listed below have been tested with UAD-2 PCIe cards. The results of these tests are noted beneath the specific models.

Note: The chassis models below are individually tested to work with UAD-2 cards. Using chassis models from different manufacturers together in the same Thunderbolt chain is an untested configuration.

Sonnet Technologies

Status: Compatible. All of the above chassis models are tested in-house for use with UAD‑2 PCIe cards. Although other Thunderbolt-to-PCIe chassis models from Sonnet Technologies are not specifically tested, we are not currently aware of any issues with the other chassis models from this manufacturer.


Status: Compatible. Both of these chassis models are tested in-house for use with UAD‑2 PCIe cards.

UAD-2 PCIe Frequently Asked Questions

Where can I learn more about UAD-2 PCIe cards?

See the main UAD-2 FAQ.

Are UAD-2 device drivers compatible with 64-bit operating systems?

Yes. For more information about 64-bit operating systems, please read the following UA Support Report:
64-bit Operating Systems: Separating Fact from Fiction

Are UAD Powered Plug-Ins 64-bit?

Yes. UAD v6.4.0 (Win) and UAD v6.4.1 (Mac) and higher versions include both 32-bit and 64-bit UAD plug-ins.

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