---
title: kIOUSBUSB20ExtensionCapabilityBESLValid
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.15+]
path: kernel/3166385-anonymous/kiousbusb20extensioncapabilitybeslvalid
---

# kIOUSBUSB20ExtensionCapabilityBESLValid

## Declaration

```occ
kIOUSBUSB20ExtensionCapabilityBESLValid = IOUSBBit(3)
```