| ID | | Article Title | Post Date |
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756 | 
| Do the Sonnet USB 2.0 or USB 3 cards support the Apple SuperDrive? | Apr-02-22 |
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759 | 
| My bus-powered USB 3 drive or SSD will not reliably mount or transfer data. | Dec-14-19 |
| High power bus-powered drives are supported by the current and recent line of Sonnet USB 3 cards, plus the Tango 3.0 PCIe (FW8USB3A-E) cards, but not the discontinued USB 3.0 PCIe cards (USB3-E or USB3M-E), the initial version of the Tango 3.0 PCIe card (FWUSB3-E), or any USB 2.0 cards.
If you are still having trouble, this may be a problem due to a voltage drop in the USB cable. Use the following guide to select the correct cable for your application.
In general, these cables should work with SSDs or optical drives drawing up to 2A of current:
Type........Power-Carrying Wires....Cable Outside Diameter....Maximum Cable Length
USB 2.0..........28 AWG...............................3.8mm...........................0.15m (0.5 ft)
USB 2.0..........24 AWG...............................4.7mm...........................0.3m ( 1 ft)
USB 2.0..........22 AWG...............................5.0mm..............................1m ( 3 ft)
USB 3.0..........20 AWG...............................6.0mm..............................1m ( 3 ft)
Generally, the gauge of the power-carrying wires can be inferred from the cable outside diameter. |
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|
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 |
|
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 |
|
971 |
| One or more of my ports has stopped working on my USB 3 card. | Aug-24-22 |
| All current and recent Sonnet USB 3 cards have resettable fuses to protect the ports from an overcurrent condition. To reset the fuses, you must remove power to the card by shutting down your machine. (Restarting is not sufficient.) After turning the computer back on, the ports should start working again. If the fuses continue to trip, then you may have a device that draws too much USB Bus power (more than 2 Amps). |
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|
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 |
|
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 |
| The Sonnet Allegro USB-C and Allegro Pro 4-port Type A USB 3.2 cards support the fastest speed of each device independently on each port. The Sonnet cards supports "Multiple Ins", which means that that the host can issue a read request to one endpoint device and then proceed with other transactions without waiting for the response from the first device. Supporting Multiple Ins also improves performance to mutiple Gen 1 devices on a downstream Gen 2 hub connected to a Sonnet card Gen 2 port. |
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