---
title: kUSBInformationDeviceIsOnThunderboltMask
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 18.4+, macOS 10.8+]
path: iokit/usbdeviceinformationbits/kusbinformationdeviceisonthunderboltmask
---

# kUSBInformationDeviceIsOnThunderboltMask

## Declaration

```occ
kUSBInformationDeviceIsOnThunderboltMask = (1 << kUSBInformationDeviceIsOnThunderboltBit)
```