---
title: kIOUSBDeviceCapabilityTypeUSB20Extension
framework: kernel
role: symbol
role_heading: Enumeration Case
path: kernel/tiousbdevicecapabilitytype/kiousbdevicecapabilitytypeusb20extension
---

# kIOUSBDeviceCapabilityTypeUSB20Extension

## Declaration

```occ
kIOUSBDeviceCapabilityTypeUSB20Extension = 2
```