Allegro USB 3.0 PCIe
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Driver (3)
Firmware (0)
Manual (2)
FAQ (9)
IDArticle TitlePost Date
523 Does the Sonnet Allegro USB 3.0 PCIe card support the Blackmagic Intensity Shuttle, Pocket UltraScope, and UltraStudio Pro?May-03-11
Yes, under Windows, with firmware version 3.0.2.5 and higher and driver version 2.0.4.0 and higher; and when used in a PCIe 2.0 slot.
 
641 Why is my USB 3.0 card reporting a USB 2.0 connection to a USB 3.0 storage device?Jan-10-12
668 Does my Sonnet USB 3.0 card work with OS X 10.7.5?Sep-04-12
Yes, when you install the Sonnet USB 3.0 Driver (Mac) version 1.0.8 or later.
 
681 Are Sonnet's USB 3.0 cards compatible with OS X 10.8 (Mountain Lion)? Sep-04-12
726 Does the Allegro USB 3.0 card support bus-powered drives? Nov-27-13
The Allegro USB 3.0 card does not provide enough power for most USB 3.0 2.5" bus-powered drives and SSDs.

The Allegro USB 3.0 card powers bus-powered thumb drives just fine during wake, but does not have power for any bus-powered drives during sleep. In a Mac Pro, bus-powered drives will disconnect upon wake and need to be unplugged and plugged after sleep to reappear on the desktop. In a Windows machine, the drives appear normally after sleep. Wall powered drives do not have any issues with sleep in any machine.
 
732 Do the Sonnet Allegro USB 3.0 cards support Thumb Drives?Oct-24-13
756 Do the Sonnet USB 2.0 or USB 3 cards support the Apple SuperDrive?Apr-02-22
None of Sonnet's Cards with USB 2.0 or USB 3 (either Type A or Type C) ports support the Apple SuperDrive. You must use a built-in USB 2.0 or 3.0 port on your Mac.

According to http://support.apple.com/kb/HT5630, "The Apple USB SuperDrive is compatible with Mac models from 2008 and later that don't have a built-in optical drive."
 
759 My bus-powered USB 3 drive or SSD will not reliably mount or transfer data.Dec-14-19
817 Storage connected to a USB 3 PCIe card (or Tango combo card) gives an macOS error message upon wake from sleep.May-12-20