---
title: bmSublinkSpeedAttr
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.15+]
path: iokit/iousbdevicecapabilitysuperspeedplususb/3142866-bmsublinkspeedattr
---

# bmSublinkSpeedAttr

## Declaration

```occ
uint32_t bmSublinkSpeedAttr[];
```