---
title: kIOUSBUSB20ExtensionCapabilityBESL
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.15+]
path: kernel/3166385-anonymous/kiousbusb20extensioncapabilitybesl
---

# kIOUSBUSB20ExtensionCapabilityBESL

## Declaration

```occ
kIOUSBUSB20ExtensionCapabilityBESL = IOUSBBitRange(8, 11)
```