How to Connect an iMac to a MacBook Pro as an External Monitor in 2023
Are you looking to connect your iMac to your MacBook Pro to use as an external monitor? In this guide, we will explore the current methods and options available to achieve this setup, considering both hardware connectors and software solutions.
Connecting Using Thunderbolt 3 Cables
For users with relatively recent iMac and MacBook Pro models, connecting your iMac to your MacBook Pro can be easily achieved using a Thunderbolt 3 cable. This is ideal for users with devices from the past three years (2020 onwards). Thunderbolt 3 cables offer not only data transfer but also support for DisplayPort, allowing you to connect to an external monitor. Simply plug the Thunderbolt 3 cable into both devices and configure your settings accordingly to ensure smooth display output.
Adapters and Work Stations for Non-Thunderbolt 3 Devices
However, not all iMac and MacBook Pro models come equipped with Thunderbolt 3 ports. If your devices don't have this port, there are various adapters and workstations on the market that can facilitate the connection. Adapters like USB-C to Thunderbolt adapters can bridge the gap between your devices. Additionally, workstations such as desktop docks with Thunderbolt 3 ports can serve as a hub for all your devices, including monitors and keyboards.
When Target Display Mode Is Not an Option
It is worth noting that as of current updates, Apple no longer supports Target Display Mode, which was historically a feature allowing one Apple device to display the screen of another. This means that using your iMac as a secondary display for your MacBook Pro is not possible through this method. Instead, you need to consider alternative solutions.
Using an iPad with Side Car
A creative workaround for using an iPad as an external monitor is through the use of Side Car. This feature is available on both macOS and iPadOS, making it a versatile solution. By enabling Side Car on your MacBook Pro, you can extend your desktop to an iPad placed in compatible mode. This can be incredibly useful for multitasking or showcasing content. Simply pair your devices via Bluetooth, and you'll gain access to the iPad screen as an extended desktop.
Connecting Without a DisplayPort or Thunderbolt 3
If neither Thunderbolt 3 nor a suitable adapter is available, you might need to explore other options such as USB-C to HDMI/CVBS adapters, which can allow for video output through USB-C ports. This method, however, may have limitations in terms of resolution and performance compared to dedicated Thunderbolt 3 setups.
Video Capture Dongles
For even more specialized setups, consider using a video capture dongle. These devices can capture video from your iMac and transmit it to your MacBook Pro. While this method can be complex and expensive, it offers the flexibility to connect your iMac to virtually any display without hardware limitations.
Conclusion
Connecting an iMac to a MacBook Pro as an external monitor presents several options depending on your specific needs and the compatibility of your devices. For the most straightforward and high-performance solution, Thunderbolt 3 cables or compatible adapters are recommended. However, for those without these options, Side Car on iPads and other specialized equipment can offer workable alternatives. Always ensure that you check the compatibility and limitations of the methods you choose and consult Apple's official documentation for the best guidance.