---
title: kIOUSB30TimingParameterBELTDefaultNs
framework: kernel
role: symbol
role_heading: Enumeration Case
path: kernel/tiousb30timingparameters/kiousb30timingparameterbeltdefaultns
---

# kIOUSB30TimingParameterBELTDefaultNs

The BELT default in nanoseconds.

## Declaration

```occ
kIOUSB30TimingParameterBELTDefaultNs = 1 * 1000 * 1000
```