---
title: kIOUSBDescriptorSizeBillboardDeviceMaximum
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 13.0+, macOS 10.15+]
path: iokit/tiousbdescriptorsize/kiousbdescriptorsizebillboarddevicemaximum
---

# kIOUSBDescriptorSizeBillboardDeviceMaximum

## Declaration

```occ
kIOUSBDescriptorSizeBillboardDeviceMaximum = 256
```