---
title: DEVICE_STEP_RATE
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.3+]
path: kernel/sbcmodepagerigiddiskgeometry/1476392-device_step_rate
---

# DEVICE_STEP_RATE

## Declaration

```occ
UInt16 DEVICE_STEP_RATE;
```