| 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 |
|
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). |
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|
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 |
| USB 3 is the specification revision published by the USB Implementers Forum. Dot 0, dot 1, or dot 2 is the revision level of the specification. USB 3.2 superseded USB 3.1, which superceded USB 3.0. Each version of the specification retained what was in the previous specification and added something new. USB 3.1 added 10Gbps. USB 3.2 adds 20Gbps.
Our cards have not changed. We have updated the naming on our web site to conform with the latest specification.
This chart may help...
USB 3.0____USB 3.1___________________USB 3.2________________
USB 3.0 -> USB 3.1 Gen 1 (5Gbps) --> USB 3.2 Gen 1 (5Gbps)
..................USB 3.1 Gen 2 (10Gbps) -> USB 3.2 Gen 2 (10Gbps)
.............................................................USB 3.2 Gen 2x2 (20Gbps) |
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|
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 |
| We connect each USB 3 controller with two lanes of PCIe 2. Each controller has 1000MB/s bandwidth which is enough bandwidth for the fastest devices you can connect, such as USB 3.1 Gen 2 NVMe SSDs. Because the read/write bandwidth is independent, on one controller you can be reading from one SSD at 1000MB/s, and writing to another at 1000MB/s, plus the same on the 2nd controller for an aggregate transfer rate of 4000MB/s. What makes this possible is that Sonnet uses the advanced ASMedia 3142 Controller that supports Multiple INs, which means that reads can commence on one port before a write has competed on the other port.
A PCIe 3 Bridge chip would cost you $50 more, but would give you incremental performance only if you needed to continually simultaneously read--or simultaneously write--to four USB 3.1 Gen 2 NVMe devices, a very unusual use case.
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1149 |
| How to configure Linux to use Allegro Pro USB card models USB3C-4PM-E and USB3-PRO-4P10-E | May-04-21 |
|
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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