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# tIOUSB30TimingParameters

Constants for USB 3.0 timing parameters.

```
enum tIOUSB30TimingParameters : unsigned int;
```

## Discussion

For information about these constants, see Table 8-36 of the USB 3.1 specification at <http://www.usb.org>.

## Topics

### Getting the Timing Parameters

[`kIOUSB30TimingParameterBELTDefaultNs`](/documentation/USBDriverKit/tIOUSB30TimingParameters/kIOUSB30TimingParameterBELTDefaultNs)

[`kIOUSB30TimingParameterBELTMinNs`](/documentation/USBDriverKit/tIOUSB30TimingParameters/kIOUSB30TimingParameterBELTMinNs)


---

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