---
title: "StandardUSB30::kHubExtStatusTxSublinkSpeedID"
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 12.0+]
path: kernel/standardusb30_thubextstatus/standardusb30_khubextstatustxsublinkspeedid
---

# StandardUSB30::kHubExtStatusTxSublinkSpeedID

## Declaration

```occ
StandardUSB30::kHubExtStatusTxSublinkSpeedID = kIOUSB30HubExtStatusTxSublinkSpeedID
```