---
title: kCDSectorTypeUnknown
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 13.0+, macOS 10.0+]
path: iokit/cdsectortype/kcdsectortypeunknown
---

# kCDSectorTypeUnknown

## Declaration

```occ
kCDSectorTypeUnknown = 0x00
```