| ID | | Article Title | Post Date |
|
756 | 
| Do the Sonnet USB 2.0 or USB 3 cards support the Apple SuperDrive? | Apr-02-22 |
|
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 |
| To minimize power usage during sleep, power is removed from PCIe cards. Because of this power-saving specification, a USB 3 PCIe card is unable to maintain USB port power during sleep. In macOS, this result in a storage device disconnect upon wake from sleep. The storage device will automatically remount, but the system reports a disconnect message. Because macOS flushes all caches before sleeping, this disconnect should never result in any loss of data. |
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|
933 |
| What versions of macOS support Allegro USB 3 cards? | Apr-02-22 |
|
956 |
| What generations of Thunderbolt chassis do Sonnet Allegro PCIe cards support? | Apr-02-22 |
| These cards are compatible with only Thunderbolt 2 or 3 PCIe expansion chassis; they are not compatible with Thunderbolt 1 PCIe expansion chassis (unless they have been upgraded to Thunderbolt 2). |
| |
|
971 |
| One or more of my ports has stopped working on my USB 3 card. | Aug-24-22 |
|
1080 |
| What is the difference between USB 3.0, 3.1 and 3.2? | Apr-02-22 |
|
1099 |
| What makes Sonnet USB 3.2 Cards more reliable than other USB 3 cards? | Apr-02-22 |
| The uniqueness of Sonnet USB 3.2 products is each USB port has a USB power switch (MOSFET) that manages and monitors the current flow of the USB port. The USB switch limits the current draw when a new USB device is connected minimizing the voltage droop of the main USB 5V power rail, thereby protecting devices connected to other USB ports from going offline because of port power droop. The USB switch is also a very effective current limiter that does not degrade over trips the way a resettable poly-fuse would. |
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|
1144 |
| Why does Sonnet use only PCIe 2 to connect the two controllers on these 4-port USB 3.2 Gen 2 cards? | Apr-18-21 |
|
1149 |
| How to configure Linux to use Allegro Pro USB card models USB3C-4PM-E and USB3-PRO-4P10-E | May-04-21 |
| In some computers, USB 3 devices connected to Allegro Pro USB 3 card models USB3C-4PM-E and USB3-PRO-4P10-E are not detected by Linux.
You can fix this by adding the Linux kernel parameter pci=disable_acs_redir=pci:12D8:2308 to the computer's Linux boot script. (Describing how to add a Linux kernel parameter to the computer's Linux boot script is beyond the scope of this FAQ.)
This parameter sets disable_acs_redir for PCIe devices with id 12D8:2308 (which is the PCIe bridge chip on these cards). This parameter disables PCI Express Access Control Services (ACS) functions ACS P2P Request Redirect and ACS P2P Completion Redirect. This has no effect on operation unless you are in a virtualized environment, in which case you must assign all four USB 3 ports to a single virtual machine. |
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|
1168 |
| If I put a usb 2.0 and 3.0 device on the same controller will the speeds for the 3.0 device drop to 2.0 like older split-port controllers? | Dec-07-21 |
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