Here are instructions (notably absent from the download) on how to use the USB3's ASIO driver for Mac.

* The current driver as of 7/31/02, is compatible with OS9.1 or 9.2 only. Earlier versions, or OSX are not supported.

1. Download the ASIO Mac driver from www.aardvarkaudio.com
The file you download will be called "usb3_asio_mac3"

2. Expand the file with Stuffit expander. This is commonly found in, Applications >>> Aladdin Folder >> Stuffit Expander (folder)
If you don't have expander, you can download it from aladdinsys.com
3. Expanding the file "usb3_asio_mac3" should create a new folder called "Aardvark". The contents of the folder will be "Aardvark USB 3 ASIO" and "PGAardvarkUSB3"

4. Drag "PGAardvarkUSB3" into the Extensions folder, located inside the System Folder.

5. Drag "Aardvark USB 3 ASIO" into the "ASIO Drivers" folder in your Sequencing/Recording application's folder. For example, drag the file into :
Macintosh HD >>> Digital Performer 3.0 folder >>> ASIO Drivers.

6. Launch your application, and set it's audio hardware to use ASIO USB3.