---
title: kIOUSB30RetimerDepthLimit
framework: USBDriverKit
role: symbol
role_heading: Enumeration Case
platforms: [driverkit 19.0+]
path: usbdriverkit/kiousb30retimerdepthlimit
---

# kIOUSB30RetimerDepthLimit

## Declaration

```occ
kIOUSB30RetimerDepthLimit
```