---
title: kIOUSBUSB20ExtensionCapabilityBESLDPhase
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.15+]
path: kernel/3166385-anonymous/kiousbusb20extensioncapabilitybesldphase
---

# kIOUSBUSB20ExtensionCapabilityBESLDPhase

## Declaration

```occ
kIOUSBUSB20ExtensionCapabilityBESLDPhase = IOUSBBitRangePhase(12, 15)
```