One of the key new features in macOS Monterey is the ability to AirPlay content to a Mac from other Apple devices, such as an iPhone, iPad, or another Mac. According to the macOS Monterey feature page, AirPlay for Mac works both wirelessly or wired using a USB cable, where Apple notes that a cable connection is useful when you want to ensure that there is no latency or access to a Wi-Fi Fi. Fi connection.
AirPlay for Mac also allows users to extend or mirror an Apple device’s screen to a Mac, and we’ve confirmed that this works on a Mac-to-Mac basis. This allows supported Macs to use another Mac as an external monitor, and with AirPlay for Mac working both wirelessly and with a wired connection, Apple is close to reviving Target Display Mode, which enabled the iMac models from 2009 to 2014 to act as another Macs external monitor.
It is worth noting that these new AirPlay features do not work as a complete replacement of targeting mode, as we have been told that AirPlay compresses video sent from one Mac to another, and at least some latency may is still possible.
Starting with macOS Monterey, a supported Mac can also act as an AirPlay 2 speaker source, allowing users to wirelessly stream music or podcasts from an Apple device to a Mac or use the computer as a secondary speaker for multi-room audio.
AirPlay for Mac works with a 2018 or later MacBook Pro or MacBook Air, a 2019 or later iMac or Mac Pro, an iMac Pro and a 2020 Mac mini.
macOS Monterey is available now in beta for developers, with a public beta coming in July. The software update is likely to be released to all compatible Macs sometime between the end of September and the beginning of November.