---
title: kUSBAtrSelfPowered
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 18.4+, macOS 10.0+]
path: iokit/1424648-usb_power_constants/kusbatrselfpowered
---

# kUSBAtrSelfPowered

## Declaration

```occ
kUSBAtrSelfPowered = 0x40
```