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(While we’ve written about this before across several articles, we decided to consolidate everything we knew, alongside newer and better-reviewed adapters, into a single place.) Docks extend compatibility further, with Mini DisplayPort, VGA, DVI, and other formats. Apple’s version also allows for backwards compatibility with Thunderbolt 2 and via adapters can directly connect to HDMI, DisplayPart, and USB 2 and 3, among other standards. All of Apple’s current Macs include Thunderbolt 3, a high-speed data-transfer standard. In this article, I discuss compatibility with Thunderbolt 3, which relies on the USB-C connector. We also have instructions on connecting more modem displays (and even an old iMac) as a second display. If you don’t meet the parameters or want other options, check out the more broadly compatible Luma Display, as well as Duet Display, which works with Apple and other mobile and desktop platforms. (Also, don’t forget that if you have an iPad that can run iOS 13 and a Mac model released since about 2015 running macOS Catalina, you can use the Sidecar feature to extend your Mac with an iPad.
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