com.DuetUSBDaemon

com.DuetUSBDaemon.plist · Helpers
Intel Only 2 devices
About This App

Duet USB Daemon is a system helper component that runs in the background to manage USB communication for Duet, a utility that extends your Mac's display by turning an iPad or iPhone into a secondary wireless or wired monitor. The daemon handles the low-level protocol and connection logic between your Mac and the iOS device, enabling the display-extension and input-sharing features that make Duet work.

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The Duet USB Daemon is a launchDaemon — a system helper component that is not separately updatable and runs as part of the Duet application itself. To ensure you have a native Apple Silicon compatible version of the daemon, you need to update the parent Duet application to the latest release. Visit the Duet website or check for updates within the Duet app on your Mac. If Duet has shipped a native Apple Silicon build, the daemon will be updated alongside it automatically. If you are unsure whether a native version of Duet exists, contact Duet's support team directly, since an Intel-only build will stop working when Apple removes Rosetta 2 in macOS 28 (September 2028).