---
title: IOPhysicalAddress64
framework: IOKit
role: symbol
role_heading: Type Alias
platforms: [iOS 18.4+, iPadOS 18.4+, Mac Catalyst 13.0+, macOS 10.6+, visionOS 2.4+]
path: iokit/iophysicaladdress64
---

# IOPhysicalAddress64

## Declaration

```swift
typealias IOPhysicalAddress64 = UInt64
```