---
title: legacyDeviceID
framework: coremediaio
role: symbol
role_heading: Instance Property
path: coremediaio/cmioextensiondevice/legacydeviceid
---

# legacyDeviceID

A legacy device identifier.

## Declaration

```swift
var legacyDeviceID: String { get }
```

## See Also

### Identifying a Device

- [localizedName](coremediaio/cmioextensiondevice/localizedname.md)
- [deviceID](coremediaio/cmioextensiondevice/deviceid.md)