---
title: kUSBInformationDeviceIsOnThunderboltBit
framework: kernel
role: symbol
role_heading: Enumeration Case
path: kernel/usbdeviceinformationbits/kusbinformationdeviceisonthunderboltbit
---

# kUSBInformationDeviceIsOnThunderboltBit

The bit indicating that the USB device is on a Thunderbolt port.

## Declaration

```occ
kUSBInformationDeviceIsOnThunderboltBit = 13
```