Thunderbolt 3 is the fastest connection available on many computers, very few of which have HDMI 2.1 ports yet. For daisy-chaining two 4K monitors or connecting a 5K display, it's pretty much unbeatable. You can connect other devices, too, which is neat. However, you'll need support on both the monitor and computer side---and a pricey cable or two. Once you have obtained the right cable and adapter, follow these steps to connect iPhone to a monitor: Plug the adapter, such as Lightning Digital AV Adapter, into the charging port of your iPhone. Connect the HDMI cable to the adapter. Connect the other end of the HDMI cable to the monitor or TV. Switch the video source on your monitor or TV BjL4s9N.

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