---
title: DATA_BYTES_PER_PHYSICAL_SECTOR
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.3+]
path: iokit/sbcmodepageformatdevice/1555425-data_bytes_per_physical_sector
---

# DATA_BYTES_PER_PHYSICAL_SECTOR

## Declaration

```occ
UInt16 DATA_BYTES_PER_PHYSICAL_SECTOR;
```