---
title: kIOUSB30HubExtStatusTxSublinkSpeedIDPhase
framework: kernel
role: symbol
role_heading: Enumeration Case
path: kernel/tiousb30hubextstatus/kiousb30hubextstatustxsublinkspeedidphase
---

# kIOUSB30HubExtStatusTxSublinkSpeedIDPhase

The transmit sublink speed identifier phase.

## Declaration

```occ
kIOUSB30HubExtStatusTxSublinkSpeedIDPhase = IOUSBBitRangePhase(4, 7)
```