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Configure USB-6251 Full Speed vs High Speed?

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I see that the USB-6251 can run in Full-Speed or High-Speed mode. Is this something I can configure in the NI-DAQmx API, or is this automatically decided by the USB host? Haven't been able to find anything in the reference pages one way or another.

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Accepted by topic author sambady929

Hello sambady929,


The speed that the spec sheet is referring to is the speed of your USB bus. If you connect to a High-Speed USB bus the device will operate at High-Speed. However, if you connect to a Full-Speed bus, the device will be limited to the max speed of the Full-Speed bus. 


It is not a configurable setting because it is a function of the USB hardware you are connected through. 


Hope this helps.

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Great thanks!

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