USB3 Checklist

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USB3 Checklist


Hardware limitations and incompatibilities to be considered with USB3 Vision technology

USB3 ports are to be used, they are mostly marked blue and should be as near as possible to the mainboard (onboard).

Cable length is recommended no longer than than 5m.

When the cable is not plugged in completely it might be recognized as USB2 since not all pins are connected.

If an USB 3 adapter card with PCI Express 1x is used on a system which has PCI Express 1.0 slots then the maximum possible bandwidth is 250MB/s.
But for cameras with higher bandwith a modern mainboard with a newer PCI Express version is needed.

Refer also the USB3 Vision System Requirements.


Installing the CVB USB3 Vision driver on a Windows based computer can require to uninstall other drivers

If you connect a USB 3 Vision Device  Windows is searching for the best fitting driver for this device.

If CVB is installed and no other driver is available which supersedes the CVB ones then it is installed and the device should work.

But if Windows choose the wrong driver we need to uninstall the other driver with CVB U3V Driver Manager. Then the driver will be used.

CVB Management Console -> U3V Driver Manager -> deinstall Driver  


USB3 Drivers under Linux

Within Linux there is normally one USB3 Driver. And this driver should work for all. Otherwise there is no output from lsual.


How can I get furher USB3 devices hardware information?

In the folder %CVB%\Hardware\StemmerImaging\Utilities :

Use “lsual –l” in a console window.


Device is detected, but it is not visible in the application ?

The chipset driver might also be too old. Please install the newest available driver for your chipset.

Refer USB3 Vision System Requirements.


Camera show vital signs but image acquisition is not possible

For this camera an external power supply through the 12-pin Hirose connector is essential.