---
title: kIOUSBDeviceCapabilityTypeUSB20Extension
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 13.0+, macOS 10.15+]
path: iokit/tiousbdevicecapabilitytype/kiousbdevicecapabilitytypeusb20extension
---

# kIOUSBDeviceCapabilityTypeUSB20Extension

## Declaration

```occ
kIOUSBDeviceCapabilityTypeUSB20Extension = 2
```